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ENP-C - independent subject foundations study materials
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ENP-C - independent subject foundations practice questions

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Question 1Clinical and specialty nursing assessment

An emergency department nurse encounters a 30-year-old agitated, pacing male who is shouting angrily about the waiting time and clenching his fists. According to evidence-based verbal de-escalation guidelines (BETA Project principles), what is the most appropriate initial communication strategy?

  1. Immediately confront the patient, tell him his behavior is unacceptable, and threaten police arrest
  2. Surround the patient with five security guards in close physical proximity to demonstrate overwhelming force
  3. Maintain a safe distance and clear exit route, adopt a calm non-threatening posture, acknowledge his frustration, use concise clear language, and offer collaborative choices Correct answer.
  4. Turn your back on the patient and ignore him until he becomes quiet

Explanation

The BETA project principles for verbal de-escalation emphasize 10 key domains: 1) Maintain personal safety and maintain two arm lengths of space with an unblocked exit, 2) Maintain calm non-provocative body posture, 3) Establish verbal contact, 4) Be concise and simple, 5) Identify wants and feelings, 6) Listen closely, 7) Agree or agree to disagree, 8) Set clear boundaries respectfully, 9) Offer choices and alternatives, and 10) Debrief.

Question 2Clinical and specialty nursing assessment

A 23-year-old woman is brought to the ED after stating to her roommate that she wanted to end her life. During nursing assessment, what is the evidence-based nursing approach for assessing suicide risk and ensuring environmental safety?

  1. Avoid asking directly about suicide plans to prevent planting the idea in her head
  2. Leave the patient alone in a regular examination room with closed curtains so she can rest privately
  3. Ask direct, compassionate, and specific questions about suicidal ideation, plans, intent, and means, while placing the patient in a ligature-free room under continuous 1:1 observation Correct answer.
  4. Immediately discharge the patient if she promises verbally that she will not harm herself

Explanation

Evidence conclusively demonstrates that asking direct, clear questions about suicidal thoughts and plans does NOT increase suicide risk; rather, it provides vital risk stratification and emotional relief. Environmental safety requires placing the patient in a room stripped of ligature points, sharps, and medications, maintaining continuous 1:1 visual observation.

Question 3Clinical and specialty nursing assessment

A 25-year-old female presents with a 1-day history of right lower quadrant abdominal pain, nausea, and vomiting. On physical examination, she has tenderness at McBurney's point. What is the most likely diagnosis?

  1. Ovarian torsion
  2. Ectopic pregnancy
  3. Appendicitis Correct answer.
  4. Diverticulitis

Explanation

The classic presentation of appendicitis is periumbilical pain that migrates to the right lower quadrant, nausea, vomiting, and tenderness at McBurney's point.

Question 4Clinical and specialty nursing assessment

A 30-year-old female with a history of type 1 diabetes presents with nausea, vomiting, and abdominal pain. Her blood glucose is 450 mg/dL, and her arterial blood gas shows a pH of 7.25, a pCO2 of 25 mmHg, and a bicarbonate of 10 mEq/L. What is the most likely diagnosis?

  1. Hyperosmolar hyperglycemic state (HHS)
  2. Diabetic ketoacidosis (DKA) Correct answer.
  3. Hypoglycemia
  4. Lactic acidosis

Explanation

The patient is presenting with the classic signs and symptoms of DKA, including hyperglycemia, metabolic acidosis with an anion gap, and ketonemia. The anion gap is calculated as follows: (Na+) - [(Cl-) + (HCO3-)] = (140) - [(100) + (10)] = 30. A normal anion gap is 8-12 mEq/L.

Question 5Clinical and specialty nursing assessment

A 45-year-old male presents with a painful, swollen, and red great toe. He denies any recent trauma. Aspiration of the joint reveals needle-shaped, negatively birefringent crystals. What is the most likely diagnosis?

  1. Septic arthritis
  2. Gout Correct answer.
  3. Pseudogout
  4. Rheumatoid arthritis

Explanation

The classic presentation of gout is the sudden onset of a monoarticular arthritis, most commonly affecting the great toe (podagra). The diagnosis is confirmed by the presence of needle-shaped, negatively birefringent monosodium urate crystals in the synovial fluid.

Question 6Clinical and specialty nursing assessment

A 35-year-old male presents with a 2-day history of dysuria, urinary frequency, and urgency. A urinalysis reveals pyuria and bacteriuria. What is the most likely diagnosis?

  1. Urethritis
  2. Cystitis Correct answer.
  3. Pyelonephritis
  4. Prostatitis

Explanation

Cystitis is a lower urinary tract infection that is characterized by dysuria, frequency, and urgency. Pyuria and bacteriuria on urinalysis are diagnostic.

Question 7Clinical and specialty nursing assessment

A 28-year-old female who is 32 weeks pregnant presents with a 1-day history of vaginal bleeding and abdominal pain. On physical examination, her uterus is tender and firm. What is the most likely diagnosis?

  1. Placenta previa
  2. Placental abruption Correct answer.
  3. Uterine rupture
  4. Preterm labor

Explanation

Placental abruption is the premature separation of the placenta from the uterine wall. It is a life-threatening condition for both the mother and the fetus. The classic presentation is painful vaginal bleeding and a tender, firm uterus.

Question 8Clinical and specialty nursing assessment

A 40-year-old male with a history of schizophrenia is brought to the emergency department by the police for bizarre behavior. He is agitated, paranoid, and responding to internal stimuli. What is the most appropriate initial management?

  1. Administer haloperidol
  2. Administer lorazepam
  3. Place the patient in restraints
  4. Attempt to de-escalate the patient verbally Correct answer.

Explanation

The most important initial step in managing an agitated patient is to ensure the safety of the patient and the staff. Verbal de-escalation should always be attempted first. If the patient remains agitated and poses a threat to themselves or others, then chemical or physical restraints may be necessary.

Question 9Clinical and specialty nursing assessment

A 60-year-old male presents with severe pain from a kidney stone. He has a history of chronic kidney disease. What is the most appropriate analgesic agent to use?

  1. Morphine
  2. Hydromorphone
  3. Fentanyl Correct answer.
  4. Ketorolac

Explanation

Fentanyl is the preferred opioid analgesic for patients with renal insufficiency. It is metabolized by the liver and has no active metabolites that can accumulate in patients with kidney disease.

Question 10Clinical and specialty nursing assessment

A 50-year-old male presents to the emergency department with a complaint of dizziness. What is the most important question to ask this patient?

  1. 'What do you mean by dizzy?' Correct answer.
  2. 'Have you had any alcohol to drink?'
  3. 'Are you taking any new medications?'
  4. 'Do you have a history of heart problems?'

Explanation

The term 'dizzy' can mean different things to different people. It is important to ask the patient to describe their symptoms in more detail. Is it a feeling of lightheadedness, vertigo (a spinning sensation), or unsteadiness?

Question 11Clinical and specialty nursing assessment

A nurse practitioner is caring for a patient who is a well-known celebrity. A reporter calls the emergency department and asks for information about the patient's condition. What is the most appropriate response?

  1. 'I can neither confirm nor deny that the patient is here.' Correct answer.
  2. 'The patient is in stable condition.'
  3. 'I am not at liberty to discuss the patient's condition.'
  4. 'You will need to speak with the patient's publicist.'

Explanation

Without an appropriate authorization or other applicable basis, protect the patient’s confidentiality rather than confirming a celebrity’s presence or disclosing clinical details to a reporter. The actual applicable law and institutional process determine any permitted directory or other disclosure; this ethical example does not assert identical rules in every jurisdiction.

Question 12Clinical and specialty nursing assessment

A 40-year-old male presents with a 3-day history of watery diarrhea, abdominal cramping, and bloating. He recently returned from a trip to Mexico. What is the most likely diagnosis?

  1. Viral gastroenteritis
  2. Traveler's diarrhea Correct answer.
  3. Inflammatory bowel disease
  4. Irritable bowel syndrome

Explanation

Traveler's diarrhea is a common illness that is caused by consuming contaminated food or water. It is most commonly caused by enterotoxigenic Escherichia coli. The symptoms typically resolve on their own within a few days.

Question 13Clinical and specialty nursing assessment

A 45-year-old female presents with a 6-month history of fatigue, weight gain, and constipation. She also complains of feeling cold all the time. On physical examination, her skin is dry and her reflexes are delayed. What is the most likely diagnosis?

  1. Hyperthyroidism
  2. Hypothyroidism Correct answer.
  3. Cushing's syndrome
  4. Addison's disease

Explanation

The patient's symptoms are classic for hypothyroidism. The diagnosis can be confirmed by measuring the thyroid-stimulating hormone (TSH) and free thyroxine (T4) levels. In primary hypothyroidism, the TSH will be elevated and the free T4 will be low.

Question 14Clinical and specialty nursing assessment

A 30-year-old female presents with a 2-week history of pain and stiffness in her hands and wrists. The stiffness is worse in the morning and improves with activity. On physical examination, there is swelling of the metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints. What is the most likely diagnosis?

  1. Osteoarthritis
  2. Rheumatoid arthritis Correct answer.
  3. Systemic lupus erythematosus (SLE)
  4. Psoriatic arthritis

Explanation

The patient's age, gender, and clinical presentation are all classic for rheumatoid arthritis. The symmetrical involvement of the small joints of the hands and the morning stiffness are key features.

Question 15Clinical and specialty nursing assessment

A 25-year-old African American male presents with a 2-day history of severe pain in his arms, legs, and chest. He has a history of sickle cell disease. What is the most likely diagnosis?

  1. Vaso-occlusive crisis Correct answer.
  2. Aplastic crisis
  3. Sequestration crisis
  4. Hemolytic crisis

Explanation

A vaso-occlusive crisis is the most common type of sickle cell crisis. It is caused by the sickling of red blood cells, which leads to the blockage of small blood vessels. This can cause severe pain in any part of the body.

Question 16Clinical and specialty nursing assessment

A 25-year-old male presents with a 1-day history of severe, colicky flank pain that radiates to his groin. He also complains of nausea and vomiting. A urinalysis reveals hematuria. What is the most likely diagnosis?

  1. Pyelonephritis
  2. Nephrolithiasis Correct answer.
  3. Testicular torsion
  4. Epididymitis

Explanation

The classic presentation of nephrolithiasis (kidney stones) is the sudden onset of severe, colicky flank pain that radiates to the groin. Nausea, vomiting, and hematuria are also common.

Question 17Clinical and specialty nursing assessment

A 30-year-old female presents with a 3-day history of lower abdominal pain, fever, and a purulent vaginal discharge. On physical examination, she has cervical motion tenderness. What is the most likely diagnosis?

  1. Bacterial vaginosis
  2. Trichomoniasis
  3. Pelvic inflammatory disease (PID) Correct answer.
  4. Endometriosis

Explanation

PID is an infection of the upper female genital tract. It is most commonly caused by Neisseria gonorrhoeae and Chlamydia trachomatis. The classic presentation is lower abdominal pain, fever, and a purulent vaginal discharge. Cervical motion tenderness is a key finding on physical examination.

Question 18Clinical and specialty nursing assessment

A 40-year-old male is brought to the emergency department after a fall from a height. He is complaining of severe back pain. A CT scan of the spine shows a burst fracture of the L1 vertebra. What is the most appropriate management?

  1. Bed rest
  2. Pain medication
  3. Surgical consultation Correct answer.
  4. Physical therapy

Explanation

A burst fracture is an unstable fracture of the spine that can lead to spinal cord injury. The most appropriate management is to consult a spine surgeon for consideration of surgical stabilization.

Question 19Clinical and specialty nursing assessment

A 50-year-old male with a history of alcoholism presents with a 2-day history of epigastric pain that radiates to his back. The pain is worse after eating. He also complains of nausea and vomiting. His serum lipase is elevated. What is the most likely diagnosis?

  1. Peptic ulcer disease
  2. Cholecystitis
  3. Pancreatitis Correct answer.
  4. Gastroesophageal reflux disease (GERD)

Explanation

The classic presentation of pancreatitis is epigastric pain that radiates to the back, nausea, and vomiting. The diagnosis is confirmed by an elevated serum lipase level. Alcohol abuse is a common cause of pancreatitis.

Question 20Clinical and specialty nursing assessment

A 50-year-old male presents with a 6-month history of headaches, sweating, and palpitations. His blood pressure is 200/110 mmHg. A 24-hour urine collection shows elevated levels of metanephrines. What is the most likely diagnosis?

  1. Hyperthyroidism
  2. Pheochromocytoma Correct answer.
  3. Cushing's syndrome
  4. Primary hyperaldosteronism

Explanation

A pheochromocytoma is a rare tumor of the adrenal medulla that secretes catecholamines. The classic triad of symptoms is headaches, sweating, and palpitations. The diagnosis is confirmed by measuring elevated levels of metanephrines (catecholamine metabolites) in the urine or plasma.

Question 21Clinical and specialty nursing assessment

A 20-year-old male presents with a 1-week history of pain and swelling in his right knee. He denies any recent trauma. He also complains of a urethral discharge. What is the most likely diagnosis?

  1. Septic arthritis
  2. Gout
  3. Reactive arthritis Correct answer.
  4. Lyme arthritis

Explanation

Reactive arthritis is an inflammatory arthritis that is triggered by an infection in another part of the body, such as the genitourinary or gastrointestinal tract. The classic triad of symptoms is arthritis, urethritis, and conjunctivitis. The mnemonic 'can't see, can't pee, can't climb a tree' can be used to remember the symptoms.

Question 22Clinical and specialty nursing assessment

A 70-year-old male presents with a 3-month history of fatigue, weight loss, and bone pain. A complete blood count shows anemia, thrombocytopenia, and rouleaux formation. A serum protein electrophoresis shows an M-spike. What is the most likely diagnosis?

  1. Chronic lymphocytic leukemia
  2. Multiple myeloma Correct answer.
  3. Waldenstrom's macroglobulinemia
  4. Amyloidosis

Explanation

Multiple myeloma is a cancer of plasma cells. It is characterized by the accumulation of malignant plasma cells in the bone marrow. The classic triad of symptoms is bone pain, anemia, and kidney failure. The diagnosis is confirmed by the presence of an M-spike on serum protein electrophoresis and lytic lesions on skeletal survey.

Question 23Clinical and specialty nursing assessment

A 60-year-old male presents with a 3-month history of a painless, hard mass in his right testicle. What is the most likely diagnosis?

  1. Testicular torsion
  2. Epididymitis
  3. Hydrocele
  4. Testicular cancer Correct answer.

Explanation

A painless, hard mass in the testicle is the most common presentation of testicular cancer. Any solid, firm mass within the testicle should be considered malignant until proven otherwise.

Question 24Clinical and specialty nursing assessment

A 35-year-old female who is 10 weeks pregnant presents with a 1-day history of vaginal bleeding and cramping. On physical examination, her cervical os is closed. An ultrasound shows an intrauterine pregnancy with a fetal heartbeat. What is the most likely diagnosis?

  1. Threatened abortion Correct answer.
  2. Inevitable abortion
  3. Incomplete abortion
  4. Complete abortion

Explanation

A threatened abortion is defined as vaginal bleeding before 20 weeks of gestation with a closed cervical os and a viable intrauterine pregnancy on ultrasound. Most threatened abortions do not progress to a spontaneous abortion.

Question 25Clinical and specialty nursing assessment

A 50-year-old female with type 2 diabetes presents with a blood glucose of 50 mg/dL. She is awake and able to swallow. What is the most appropriate initial management?

  1. Administer intravenous dextrose
  2. Administer intramuscular glucagon
  3. Give the patient 15 grams of a simple carbohydrate Correct answer.
  4. Give the patient a glass of orange juice

Explanation

For a conscious patient with hypoglycemia, the most appropriate initial management is to give them 15 grams of a simple carbohydrate, such as glucose tablets or gel. If the patient is unconscious or unable to swallow, then intravenous dextrose or intramuscular glucagon should be administered.

Question 26Clinical and specialty nursing assessment

A 60-year-old female presents with a 3-month history of a burning sensation in her chest that is worse after eating and when she lies down at night. She has a chronic cough. What is the most likely diagnosis?

  1. Peptic ulcer disease
  2. Cholecystitis
  3. Pancreatitis
  4. Gastroesophageal reflux disease (GERD) Correct answer.

Explanation

The classic presentation of GERD is heartburn, which is a burning sensation in the chest. Other symptoms include regurgitation, dysphagia, and a chronic cough. The symptoms are often worse after eating and when lying down.

Question 27Clinical and specialty nursing assessment

A 40-year-old female presents with a 1-year history of amenorrhea, galactorrhea, and headaches. A pregnancy test is negative. A prolactin level is elevated. What is the most likely diagnosis?

  1. Polycystic ovary syndrome (PCOS)
  2. Hypothyroidism
  3. Prolactinoma Correct answer.
  4. Sheehan's syndrome

Explanation

A prolactinoma is a benign tumor of the pituitary gland that secretes prolactin. The excess prolactin can cause amenorrhea, galactorrhea, and headaches. The diagnosis is confirmed by an elevated prolactin level and an MRI of the pituitary gland.

Question 28Clinical and specialty nursing assessment

A 30-year-old female presents with a 2-week history of fatigue, shortness of breath, and palpitations. A complete blood count shows a hemoglobin of 8 g/dL, a mean corpuscular volume (MCV) of 70 fL, and a red cell distribution width (RDW) of 20%. What is the most likely diagnosis?

  1. Anemia of chronic disease
  2. Iron deficiency anemia Correct answer.
  3. Thalassemia
  4. Sideroblastic anemia

Explanation

Iron deficiency anemia is the most common cause of anemia worldwide. It is a microcytic anemia, which means that the MCV is low. It is also associated with a high RDW, which indicates that there is a large variation in the size of the red blood cells.

Question 29Clinical and specialty nursing assessment

A 70-year-old male presents with a 6-month history of a weak urinary stream, hesitancy, and nocturia. A digital rectal examination reveals a smooth, firm, and enlarged prostate. What is the most likely diagnosis?

  1. Benign prostatic hyperplasia (BPH) Correct answer.
  2. Prostate cancer
  3. Prostatitis
  4. Urethral stricture

Explanation

BPH is a non-cancerous enlargement of the prostate gland that is common in older men. The classic presentation is a weak urinary stream, hesitancy, and nocturia. The digital rectal examination findings are also consistent with BPH.

Question 30Clinical and specialty nursing assessment

A 40-year-old female presents with a 6-month history of heavy menstrual bleeding and pelvic pain. An ultrasound shows a large, irregular uterus. What is the most likely diagnosis?

  1. Endometrial cancer
  2. Uterine fibroids Correct answer.
  3. Adenomyosis
  4. Endometriosis

Explanation

Uterine fibroids, or leiomyomas, are benign tumors of the uterus that are common in women of reproductive age. They can cause heavy menstrual bleeding, pelvic pain, and a feeling of fullness in the pelvis. The ultrasound findings are also consistent with uterine fibroids.

Question 31Surgical assessment, trauma and anatomical complications

A 32-year-old motorcyclist is admitted to the shock room following a high-speed collision. On primary assessment, the nurse identifies a deep groin laceration with pulsatile, bright red blood rapidly pooling on the stretcher. The patient is pale and crying out. According to modern trauma resuscitation (<c>ABCDE) guidelines, what is the immediate priority action?

  1. Perform endotracheal intubation to secure the definitive airway
  2. Auscultate bilateral breath sounds to rule out tension pneumothorax
  3. Apply immediate direct pressure with a hemostatic gauze / junctional compression to control catastrophic hemorrhage (<c>) Correct answer.
  4. Expose the entire body and apply warm blankets to prevent hypothermia

Explanation

Modern trauma resuscitation protocols (ATLS/PHTLS/ERC) emphasize the '<c>ABCDE' paradigm, where '<c>' stands for catastrophic external hemorrhage. Exsanguinating arterial hemorrhage can cause fatal cardiac arrest within minutes. It takes precedence over standard airway management and must be controlled immediately using direct pressure, wound packing with hemostatic dressings, or tourniquets.

Question 32Surgical assessment, trauma and anatomical complications

A 35-year-old pedestrian is struck by a truck and presents with hemodynamic instability and an unstable pelvic 'open-book' ring disruption. The emergency nurse applies a commercial pelvic circumferential compression device (pelvic binder). What is the exact anatomical landmark for correct placement of the pelvic binder?

  1. Directly centered over the Greater Trochanters of the femurs (and pubic symphysis) Correct answer.
  2. Around the upper abdomen across the lower costal margin
  3. Centered over the Iliac Crests at the level of the umbilicus
  4. Directly over the mid-shaft of the bilateral femurs

Explanation

A pelvic binder must be centered directly over the Greater Trochanters (and the pubic symphysis). Applying the binder at this specific level maximizes mechanical lever forces across the pelvic ring, closing the pelvic volume and tamponading retroperitoneal venous plexus bleeding. Placing it too high (over the iliac crests) fails to reduce the fracture and can worsen pelvic disruption.

Question 33Surgical assessment, trauma and anatomical complications

An alert, cooperative 30-year-old driver presents after a rear-end motor vehicle collision with neck pain. The emergency nurse applies the Canadian C-Spine Rule to evaluate the need for cervical spine radiography. Which factor is categorized as a 'High-Risk Factor' that mandates immediate cervical spine imaging without assessing range of motion?

  1. Simple rear-end collision, ambulatory at any time at the scene
  2. Age ≥ 65 years, dangerous mechanism (e.g. fall from ≥ 1 meter / 5 stairs), or paresthesias in the extremities Correct answer.
  3. Delayed onset of neck pain without midline tenderness
  4. Absence of midline cervical spine tenderness on gentle palpation

Explanation

The Canadian C-Spine Rule outlines three mandatory high-risk factors that dictate immediate radiography: 1) Age ≥ 65 years, 2) Dangerous mechanism (e.g., fall ≥ 3 ft / 5 stairs, axial load to head, high-speed MVA > 100 km/h, rollover, ejection), or 3) Paresthesias in the extremities. If any high-risk factor is present, cervical imaging is mandatory.

Question 34Surgical assessment, trauma and anatomical complications

A focused assessment with sonography for trauma (FAST) is performed during the primary survey of a blunt abdominal trauma patient. What are the four standard anatomical acoustic windows evaluated in a conventional FAST examination?

  1. Thyroid, carotid artery, femoral vein, and popliteal fossa
  2. Bilateral lungs, brain ventricles, aorta, and IVC
  3. Gallbladder, appendix, stomach, and urinary bladder
  4. Perihepatic (Morison's pouch / RUQ), Perisplenic (LUQ), Pelvic (Suprapubic / pouch of Douglas), and Pericardial (Subxiphoid / Cardiac) Correct answer.

Explanation

Standard FAST evaluates 4 key anatomical regions for pathologic free fluid (hemoperitoneum / hemopericardium): 1) Perihepatic / Right Upper Quadrant (Morison's pouch / hepatorenal recess), 2) Perisplenic / Left Upper Quadrant (splenorenal recess), 3) Pelvis / Suprapubic (rectovesical pouch in males / pouch of Douglas in females), and 4) Pericardial / Subxiphoid window.

Question 35Surgical assessment, trauma and anatomical complications

A 38-year-old man with a closed tibial shaft fracture treated with a tight circular cast begins screaming in agony. On physical assessment, the nurse notes tense swelling and discovers that the earliest, most sensitive clinical indicator of acute compartment syndrome is:

  1. Severe, intractable pain out of proportion to the injury that is intensely exacerbated by passive stretching of the muscles in the compartment Correct answer.
  2. Complete loss of distal arterial pulses (pulselessness)
  3. Total motor paralysis and flaccid limb drop
  4. Development of deep venous thrombosis confirmed on ultrasound

Explanation

The earliest and most reliable physical sign of Acute Compartment Syndrome is severe, escalating pain out of proportion to the physical injury, characteristically elicited by passive stretching of the affected muscle groups. Pulselessness, pallor, and paralysis are very late signs that indicate established, irreversible neuromuscular necrosis.

Question 36Surgical assessment, trauma and anatomical complications

For this arithmetic exercise only, use the explicitly supplied classic Parkland model: 4 mL times body mass in kilograms times percent TBSA over 24 hours, half in the first 8 hours after injury. A 70 kg adult has 36% TBSA burns. Which listed volumes follow? This is not an individualized resuscitation order.

  1. Total 24h: 5,040 mL; First 8h: 2,520 mL
  2. Total 24h: 10,080 mL; First 8h: 5,040 mL (half the total in the first 8 hours) Correct answer.
  3. Total 24h: 20,160 mL; First 8h: 10,080 mL
  4. Total 24h: 2,520 mL; First 8h: 1,260 mL

Explanation

The supplied classic model gives 4 times 70 times 36 equals 10,080 mL over 24 hours. Half is 5,040 mL in the first eight hours measured from injury, not arrival. Actual clinical resuscitation requires its own current protocol, assessment, prior-fluid accounting and titration.

Question 37Pediatric reasoning: development, illness severity and age-specific assessment

A 3-year-old child is brought to the ED after sudden coughing and choking while eating peanuts. The child is now breathing comfortably at rest but has unilateral right-sided expiratory wheezing and decreased breath sounds on the right. An inspiratory/expiratory chest X-ray demonstrates right-sided air trapping (hyperinflation) on expiration. What is the definitive management plan?

  1. Immediate discharge with oral antihistamines and outpatient follow-up
  2. High-dose nebulized salbutamol every 20 minutes for 24 hours in the waiting room
  3. Urgent rigid bronchoscopy under general anesthesia in the operating room for foreign body extraction Correct answer.
  4. Perform immediate blind finger sweep of the posterior pharynx

Explanation

The clinical history of choking, unilateral wheeze, and radiographical air trapping (ball-valve mechanism) is diagnostic for foreign body aspiration (typically into the right mainstem bronchus). Rigid bronchoscopy in the operating room under general anesthesia is the definitive diagnostic and therapeutic gold standard for foreign body removal in children.

Question 38Pediatric reasoning: development, illness severity and age-specific assessment

The Pediatric Assessment Triangle (PAT) is the cornerstone of rapid initial visual assessment in pediatric emergency care. What are the three core components evaluated within 30 seconds across the room without touching the child?

  1. Appearance (mental status/tone), Work of Breathing, and Circulation to Skin Correct answer.
  2. Blood pressure, core body temperature, and urine output
  3. Pupil size, abdominal girth, and birth weight
  4. Serum electrolytes, venous blood gas, and chest X-ray

Explanation

The Pediatric Assessment Triangle (PAT) evaluates three objective observational components: 1) Appearance (tone, interactiveness, consolability, look/gaze, speech/cry - 'TICLS'), 2) Work of Breathing (abnormal breath sounds, retractions, nasal flaring, head bobbing), and 3) Circulation to Skin (pallor, mottling, cyanosis). It rapidly categorizes physiological status (stable, respiratory distress/failure, shock, CNS/metabolic crisis).

Question 39Pediatric reasoning: development, illness severity and age-specific assessment

A 5-month-old infant is brought to the ED during winter with a 3-day history of clear rhinorrhea, low-grade fever, tachypnea (RR 58/min), subcostal retractions, diffuse fine inspiratory crackles, and bilateral expiratory wheezes (Acute Viral Bronchiolitis, RSV-positive). According to international and Swiss pediatric guidelines, what is the core recommended management?

  1. Routine prescription of systemic corticosteroids and broad-spectrum oral antibiotics
  2. Routine continuous nebulized salbutamol every 30 minutes
  3. Supportive care with gentle nasal suctioning, maintaining hydration/feeding, and supplemental humidified oxygen ONLY if SpO2 persistently < 90–92% Correct answer.
  4. Immediate exploratory bronchoscopy and surfactant lavage

Explanation

Acute viral bronchiolitis (predominantly Respiratory Syncytial Virus / RSV) in infants is a self-limiting viral infection of the lower bronchioles. Large clinical trials have proven that bronchodilators, systemic corticosteroids, antibiotics, and hypertonic saline do NOT alter the disease course or hospital stay. Management is strictly supportive: clearing upper airway secretions, ensuring hydration, and oxygen if SpO2 <90–92%.

Question 40Pediatric reasoning: development, illness severity and age-specific assessment

A 16-month-old girl is brought to the ED following a 2-minute generalized tonic-clonic convulsion associated with a fever of 39.4°C from acute otitis media. She is now awake, smiling, interacting with her parents, and neurological examination is entirely normal. Which set of features defines a 'Simple Febrile Seizure' as opposed to a 'Complex Febrile Seizure'?

  1. Focal onset, duration > 15 minutes, and recurrence within 24 hours
  2. Occurs only in children older than 12 years with permanent neurological deficits
  3. Generalized tonic-clonic seizure, duration < 15 minutes, occurring once in a 24-hour period in a child aged 6 months to 5 years, with full recovery to baseline Correct answer.
  4. Any seizure associated with petechial rash and nuchal rigidity

Explanation

A Simple Febrile Seizure is defined by: 1) Generalized tonic-clonic semiology, 2) Duration < 15 minutes, 3) Occurring only once in a 24-hour period, 4) In a developmentally normal child aged 6 months to 5 years, and 5) Complete recovery to baseline without post-ictal focal deficits (Todd's paresis). In contrast, Complex febrile seizures are focal, prolonged (>15 min), or recurrent within 24 hours.

Question 41Pediatric reasoning: development, illness severity and age-specific assessment

A conscious 8-month-old infant is brought into triage with acute, severe foreign body airway obstruction (silent cough, inability to vocalize, cyanosis, and ineffective breathing). According to Swiss Resuscitation Council (SRC) and ERC pediatric basic life support guidelines, what is the correct physical sequence to relieve the obstruction?

  1. Perform immediate blind finger sweep into the oropharynx followed by 5 abdominal thrusts (Heimlich maneuver)
  2. Deliver 5 Back Blows (with the infant prone, head down across the rescuer's thigh) alternating with 5 Chest Thrusts (supine, head down), reassessing after each cycle Correct answer.
  3. Hang the infant upside down by the ankles and shake vigorously
  4. Perform 30 chest compressions while the infant is upright

Explanation

In conscious choking infants (<1 year), abdominal thrusts (Heimlich maneuver) are strictly contraindicated due to high risk of liver and spleen rupture. The correct protocol is alternating 5 back blows (with infant prone, head positioned lower than trunk across rescuer's forearm/thigh) and 5 chest thrusts (supine, head down using 2 fingers on lower sternum) until the object is expelled or the infant becomes unconscious.

Question 42Airway assessment, respiratory mechanics and ventilation

For the supplied passive measurement, plateau pressure is 26 cmH2O and PEEP 14 cmH2O. Which listed driving-pressure value follows, and is it below the commonly discussed 14 to 15 range? Being below a range does not independently guarantee that ventilation is safe.

  1. 20 cmH2O; excessively high driving pressure requiring immediate reduction of tidal volume
  2. 12 cmH2O; safe driving pressure within the lung-protective target of <14–15 cmH2O Correct answer.
  3. 8 cmH2O; dangerously low driving pressure indicating severe hypoventilation
  4. 18 cmH2O; elevated driving pressure caused by high airway resistance

Explanation

Driving pressure in the stated simple measurement is plateau minus PEEP, so 26 minus 14 equals 12 cmH2O. That is below the quoted comparison range. The patient’s overall ventilation safety still depends on the actual effort, pressures, volume, gas exchange, circulation and clinical assessment.

Question 43Airway assessment, respiratory mechanics and ventilation

A 62-year-old intubated female with severe ARDS secondary to aspiration pneumonia has a PaO2/FiO2 ratio of 110 mmHg despite optimized PEEP (14 cmH2O) and neuromuscular blockade. The multidisciplinary team initiates prone positioning (Bauchlage). According to international guidelines (PROSEVA trial) and Swiss intensive care standards, what is the recommended minimum daily duration of prone positioning and its primary physiological mechanism?

  1. At least 6–8 hours per session; primarily reduces anatomical dead space by clearing upper bronchial secretions
  2. At least 8–10 hours per session; primarily increases cardiac output by relieving compression on the inferior vena cava
  3. At least 12 hours per session; primarily induces selective bronchodilation in the anterior lung segments
  4. At least 16 consecutive hours per session; promotes more homogeneous transpulmonary pressure distribution and recruits dorsal lung units Correct answer.

Explanation

The landmark PROSEVA trial demonstrated a significant 28-day and 90-day mortality reduction when prone positioning was maintained for at least 16 consecutive hours per day in severe ARDS (PaO2/FiO2 < 150 mmHg). Physiologically, prone positioning relieves dorsal lung compression by the heart and abdominal contents, creates more homogeneous transpulmonary pressure, improves ventilation-perfusion matching, and reduces lung strain.

Question 44Airway assessment, respiratory mechanics and ventilation

When monitoring an intubated adult patient in the ICU, the intensive care nurse routinely checks the endotracheal tube (ETT) cuff pressure using a calibrated cuff manometer. What is the recommended target cuff pressure range, and what are the specific clinical risks of pressures outside this range?

  1. 10–15 cmH2O; lower pressures cause vocal cord paralysis while higher pressures induce laryngospasm
  2. 35–45 cmH2O; higher pressures prevent ventilator-associated pneumonia while lower pressures cause cuff rupture
  3. 20–30 cmH2O (15–22 mmHg); lower pressures permit subglottic microaspiration while higher pressures cause tracheal mucosal ischemia Correct answer.
  4. 5–10 cmH2O; lower pressures reduce tracheal necrosis while higher pressures cause accidental extubation

Explanation

The standard recommended endotracheal cuff pressure is 20–30 cmH2O (15–22 mmHg). Pressures below 20 cmH2O fail to provide an adequate seal, allowing microaspiration of contaminated subglottic secretions into the lower airways (leading to VAP), while pressures above 30 cmH2O exceed capillary perfusion pressure of the tracheal mucosa (~30 mmHg/40 cmH2O), risking mucosal ischemia, necrosis, tracheal stenosis, and tracheoesophageal fistula.

Question 45Airway assessment, respiratory mechanics and ventilation

A patient with severe acute status asthmaticus is intubated and mechanically ventilated. The nurse notes that the expiratory flow curve does not return to baseline before the next mandatory breath begins, and the patient becomes acutely hypotensive (BP 78/45 mmHg). An end-expiratory occlusion hold reveals an intrinsic PEEP (Auto-PEEP) of 16 cmH2O. What is the primary pathophysiological cause of hypotension, and what is the immediate nursing/ventilatory action?

  1. Excessive vagal tone from airway irritation; administer IV atropine 1 mg immediately
  2. Acute right ventricular failure from hypercapnia; immediately increase the respiratory rate to 30 breaths/min
  3. Severe hypovolemia from diaphoresis; rapidly infuse 2,000 mL of 0.9% normal saline bolus
  4. Dynamic hyperinflation impairing venous return and cardiac output; temporarily disconnect from the ventilator to allow passive expiration, reduce respiratory rate, and prolong expiratory time (I:E ratio) Correct answer.

Explanation

In severe obstructive lung disease (asthma/COPD), severe airflow limitation causes air trapping and dynamic hyperinflation (Auto-PEEP). High intrathoracic pressure compresses the great veins, severely impeding venous return, decreasing right and left ventricular preload, and causing obstructive shock. The immediate life-saving intervention is to disconnect the ventilator (or extend expiratory time) to allow complete lung deflation, reduce the set respiratory rate (e.g., 10–12/min), and adjust I:E ratio (e.g., 1:3 or 1:4).

Question 46Airway assessment, respiratory mechanics and ventilation

A 54-year-old polytrauma patient has completed a 30-minute spontaneous breathing trial (SBT) on pressure support of 5 cmH2O and PEEP 5 cmH2O. During the trial, the patient's spontaneous tidal volume is 380 mL (0.38 L) and the spontaneous respiratory rate is 26 breaths/min. What is the calculated Rapid Shallow Breathing Index (RSBI / Yang-Tobin index), and does this predict successful extubation?

  1. 68.4 breaths/min/L; predicts a high likelihood of successful extubation (RSBI < 105) Correct answer.
  2. 9.8 breaths/min/L; predicts extubation failure due to excessive respiratory drive
  3. 146.2 breaths/min/L; predicts weaning failure and requires immediate resumption of full mechanical ventilation
  4. 38.0 breaths/min/L; predicts severe upper airway obstruction upon extubation

Explanation

The supplied RSBI calculation is 26 divided by 0.38, or approximately 68.4 breaths per minute per litre. A favorable historical index does not guarantee successful extubation. Airway protection, secretions, cough, strength, the complete trial and the clinical trajectory still require assessment.

Question 47Airway assessment, respiratory mechanics and ventilation

A 64-year-old ICU patient who underwent percutaneous dilatational tracheostomy (PDT) 3 days ago accidentally dislodges and decannulates the tracheostomy tube during repositioning. The patient is tachypneic, cyanotic, and in acute respiratory distress. What is the immediate, priority emergency action by the intensive care nurse?

  1. Forcefully push the old tracheostomy tube back into the stoma using a curved Kelly clamp without a guide wire
  2. Cover the stoma with an occlusive dressing and place the patient in the Trendelenburg position
  3. Call for immediate emergency help, apply 100% oxygen via facial bag-valve-mask (covering the stoma if air leaks), and prepare for oral endotracheal re-intubation or guided tube replacement Correct answer.
  4. Administer IV morphine 10 mg to relieve anxiety and wait for the ENT surgeon to arrive

Explanation

A fresh tracheostomy stoma (<7–10 days old) has not formed a mature epithelialized tract. Blind or forceful attempts to reinsert a tracheostomy tube into a fresh stoma frequently create a false tract into the pretracheal space or mediastinum, resulting in fatal airway loss and tension pneumothorax. The immediate priority is calling the emergency airway team, administering high-flow 100% O2, performing bag-valve-mask ventilation via the upper airway (sealing the stoma if necessary), and preparing for oral intubation or fiberoptic-guided stoma recannulation.

Question 48Airway assessment, respiratory mechanics and ventilation

An arterial blood gas (ABG) drawn from an arterial line in an intubated patient with COPD exacerbation shows: pH 7.31, PaCO2 8.4 kPa (63 mmHg), PaO2 9.2 kPa (69 mmHg), HCO3- 31 mmol/L, Base Excess (BE) +5 mmol/L, and SaO2 93% on FiO2 0.35. How should the intensive care nurse interpret this blood gas?

  1. Uncompensated acute metabolic acidosis with profound hypoxemia
  2. Fully compensated metabolic alkalosis with normal gas exchange
  3. Mixed acute metabolic acidosis and respiratory alkalosis
  4. Partially compensated respiratory acidosis with moderate hypercapnia Correct answer.

Explanation

The pH is acidemic (<7.35), the PaCO2 is significantly elevated (>6.0 kPa / >45 mmHg), and the HCO3- is elevated (>26 mmol/L) with a positive Base Excess (+5). Because the pH remains on the acidic side (7.31) despite renal retention of bicarbonate (HCO3- 31 mmol/L), this represents a primary respiratory acidosis with partial metabolic compensation (typical of an acute-on-chronic hypercapnic episode).

Question 49Airway assessment, respiratory mechanics and ventilation

A patient with severe ARDS (PaO2/FiO2 85 mmHg) receives a continuous infusion of the neuromuscular blocking agent (NMBA) cisatracurium. When monitoring neuromuscular blockade using a peripheral nerve stimulator (Train-of-Four [TOF]) on the ulnar nerve (adductor pollicis), what is the clinical target and monitoring standard for lung-protective ventilation in the early phase of severe ARDS?

  1. 4 out of 4 twitches with post-tetanic potentiation to ensure zero neuromuscular blockade
  2. 0 out of 4 twitches at maximum stimulation current (complete flaccid paralysis) for at least 7 days
  3. 1 to 2 out of 4 twitches on TOF monitoring, combined with clinical assessment of patient-ventilator synchrony and daily interruption Correct answer.
  4. 3 out of 4 twitches monitored solely by evaluating facial grimacing

Explanation

In severe ARDS requiring NMBA infusion (e.g., ROSE/ACURASYS protocols), the goal is achieving patient-ventilator synchrony and suppressing dyssynchronous inspiratory efforts while avoiding excessive drug accumulation. The recommended monitoring standard is maintaining 1–2 twitches out of 4 on Train-of-Four (TOF) stimulation of the adductor pollicis or orbicularis oculi, titrated to the lowest effective dose for a limited duration (≤48 hours), combined with clinical ventilator waveform observation.

Question 50Hemodynamic monitoring, shock and circulation

When setting up and calibrating an invasive radial arterial catheter blood pressure monitoring system, at what anatomical landmark must the pressure transducer be leveled and zeroed to atmospheric pressure?

  1. The sternal angle of Louis with the patient placed strictly in the left lateral decubitus position
  2. The level of the tragus of the ear with the head of the bed elevated to 90 degrees
  3. The xiphoid process with the transducer attached to the patient's forearm
  4. The phlebostatic axis (intersection of the 4th intercostal space and the mid-axillary line) Correct answer.

Explanation

The phlebostatic axis represents the anatomical location of the right and left atria. It is located at the intersection of the 4th intercostal space (ICS) and the mid-axillary line (midway between anterior and posterior chest surfaces). Leveling the transducer below this reference point falsely elevates measured blood pressure (~1.86 mmHg per inch/2.5 cm), while leveling above falsely underestimates pressure.