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ABPTS ECS study materials
ABPTS ECS study resources

ABPTS ECS practice questions

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First 50 of 200 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

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Question 1Emergency Care Clinical Practice and Patient Management

A patient arrives in cardiac arrest with ventricular fibrillation. According to basic and advanced life support principles, what is the most appropriate initial defibrillation energy for a biphasic device?

  1. 20 joules for the first shock
  2. 360 joules for all biphasic devices
  3. Manufacturer-recommended dose, typically 120 to 200 joules Correct answer.
  4. 50 joules escalating by 25 joules

Explanation

For biphasic defibrillators, the recommended initial energy is the manufacturer's suggested dose, commonly in the 120 to 200 joule range, with escalation for subsequent shocks if needed. Using a device-specific dose optimizes first-shock success.

Question 2Emergency Care Clinical Practice and Patient Management

Which finding most strongly suggests the need to escalate to a higher level of emergency care during initial patient triage?

  1. Persistent hypotension despite initial fluid resuscitation Correct answer.
  2. Pain rated 4 out of 10 at rest
  3. A single episode of vomiting after eating
  4. Mild bilateral ankle edema

Explanation

Persistent hypotension after initial fluid resuscitation indicates hemodynamic instability that requires escalation and higher-acuity intervention. Isolated mild symptoms or moderate pain generally do not mandate transfer on their own.

Question 3Emergency Care Clinical Practice and Patient Management

A patient with a suspected cervical spine injury must be moved urgently because of an immediate environmental hazard. What is the most appropriate principle for safe transfer?

  1. Remove the collar before moving to improve airway access
  2. Have the patient sit upright and pivot to a chair
  3. Traction the head to reduce the fracture
  4. Perform a rapid log-roll while maintaining manual in-line stabilization Correct answer.

Explanation

When urgent movement is required, maintain manual in-line stabilization and move the patient as a unit, such as with a coordinated log-roll, to limit spinal motion. Removing immobilization or applying traction risks further injury.

Question 4Emergency Care Clinical Practice and Patient Management

Which sign is the earliest and most reliable indicator of inadequate tissue perfusion in a patient being monitored in the emergency setting?

  1. Falling urine output with rising lactate Correct answer.
  2. A single elevated blood pressure reading
  3. Bradycardia with hypertension
  4. Warm dry skin

Explanation

Oliguria combined with a rising lactate reflects reduced organ perfusion and anaerobic metabolism, making it a reliable early marker of shock. Vital sign changes can lag and isolated readings are less informative.

Question 5Emergency Care Clinical Practice and Patient Management

A patient presents with sudden-onset severe headache, and subarachnoid hemorrhage is suspected. Which diagnostic step is most appropriate after initial stabilization?

  1. MRI of the lumbar spine
  2. Skull radiograph
  3. Non-contrast head CT followed by lumbar puncture if CT is negative and timing permits Correct answer.
  4. Immediate lumbar puncture without imaging

Explanation

Non-contrast head CT is the first-line test for suspected subarachnoid hemorrhage; if it is negative and the presentation is early, lumbar puncture for xanthochromia may follow. Imaging before lumbar puncture avoids missing a mass or herniation risk.

Question 6Emergency Care Clinical Practice and Patient Management

Which intervention is the priority in the initial management of an adult with anaphylaxis and hypotension?

  1. Nebulized saline
  2. Intravenous corticosteroid as the first agent
  3. Intramuscular epinephrine into the anterolateral thigh Correct answer.
  4. Oral antihistamine before any other drug

Explanation

Intramuscular epinephrine is the first-line treatment for anaphylaxis because it rapidly reverses vasodilation and airway edema. Antihistamines and steroids are adjuncts and do not address the acute hemodynamic collapse.

Question 7Emergency Care Clinical Practice and Patient Management

A patient with a tension pneumothorax develops rapidly worsening hypotension and tracheal deviation. What is the most appropriate immediate action?

  1. Apply high-flow oxygen alone
  2. Administer a fluid bolus and observe
  3. Needle decompression followed by tube thoracostomy Correct answer.
  4. Obtain a chest radiograph before any intervention

Explanation

Tension pneumothorax is a clinical diagnosis requiring immediate needle decompression followed by definitive tube thoracostomy. Waiting for imaging or relying on oxygen alone can lead to cardiovascular collapse.

Question 8Emergency Care Clinical Practice and Patient Management

Which parameter best guides the adequacy of chest compressions during cardiopulmonary resuscitation?

  1. Pupillary size
  2. Skin temperature
  3. Capnography waveform and end-tidal carbon dioxide Correct answer.
  4. Respiratory rate of the rescuer

Explanation

End-tidal carbon dioxide from capnography correlates with pulmonary blood flow during CPR and helps assess compression quality. A sudden rise may also suggest return of spontaneous circulation.

Question 9Emergency Care Clinical Practice and Patient Management

A patient with severe hyperkalemia and electrocardiographic changes is being treated. Which therapy most rapidly stabilizes the myocardium?

  1. Oral potassium binder
  2. Loop diuretic
  3. Insulin with glucose
  4. Intravenous calcium Correct answer.

Explanation

Intravenous calcium antagonizes the membrane effects of potassium and stabilizes the myocardium within minutes. Insulin-glucose and binders shift or remove potassium but do not immediately protect the heart.

Question 10Emergency Care Clinical Practice and Patient Management

A patient with acute ischemic stroke presents 90 minutes after symptom onset. Which factor most determines eligibility for intravenous thrombolysis?

  1. Patient's baseline blood pressure only
  2. Family history of stroke
  3. Time since symptom onset and absence of hemorrhage on imaging Correct answer.
  4. Presence of a headache

Explanation

Thrombolysis eligibility hinges on the time window from symptom onset and exclusion of intracranial hemorrhage on imaging, along with other criteria. Headache or family history do not determine eligibility.

Question 11Emergency Care Clinical Practice and Patient Management

Which finding is most consistent with the diagnosis of compartment syndrome in an injured extremity?

  1. Absent distal pulses as the earliest sign
  2. Pain out of proportion to injury that worsens with passive stretch Correct answer.
  3. Cool, pale skin as the first indicator
  4. Immediate loss of sensation as the primary sign

Explanation

Compartment syndrome is characterized early by pain out of proportion to the injury and pain with passive stretch of the compartment muscles. Pulselessness and pallor are late findings.

Question 12Emergency Care Clinical Practice and Patient Management

A patient with a suspected opioid overdose has a respiratory rate of 6 breaths per minute and pinpoint pupils. What is the most appropriate first-line pharmacologic intervention?

  1. Flumazenil
  2. Glucagon
  3. Naloxone Correct answer.
  4. Atropine

Explanation

Naloxone is an opioid antagonist that reverses opioid-induced respiratory depression. Flumazenil reverses benzodiazepines, atropine treats bradycardia, and glucagon is unrelated to opioid reversal.

Question 13Emergency Care Clinical Practice and Patient Management

During a mass casualty event, a patient has an open airway, a respiratory rate of 28, and a capillary refill under 2 seconds, and can follow commands. Using a standard triage category, how should this patient be classified?

  1. Minor
  2. Delayed
  3. Immediate Correct answer.
  4. Expectant

Explanation

A respiratory rate above 30 or delayed capillary refill typically marks immediate status in standard triage; a rate of 28 with normal perfusion and intact mentation places the patient in an urgent category requiring prompt treatment. Among the choices, immediate reflects the need for rapid intervention.

Question 14Emergency Care Clinical Practice and Patient Management

A patient in septic shock is being managed in the emergency setting. Which combination best reflects initial resuscitation priorities?

  1. Fluid resuscitation and early broad-spectrum antibiotics Correct answer.
  2. Corticosteroids as the sole initial therapy
  3. Immediate vasopressors before any fluids
  4. Diuretics to reduce preload

Explanation

Early sepsis care emphasizes prompt fluid resuscitation and timely administration of broad-spectrum antibiotics. Vasopressors are added for persistent hypotension after fluids, and diuretics or steroids are not initial sole therapies.

Question 15Emergency Care Clinical Practice and Patient Management

Which statement correctly describes the purpose of a rapid sequence intubation approach in an emergency airway?

  1. It replaces the need for post-intubation confirmation
  2. It eliminates the need for preoxygenation
  3. It minimizes the time between induction and airway placement to reduce aspiration and hypoxia risk Correct answer.
  4. It guarantees a difficult airway will be easy

Explanation

Rapid sequence intubation coordinates induction and neuromuscular blockade to shorten the interval to definitive airway control, reducing aspiration and hypoxia risk. It does not remove the need for preoxygenation or confirmation.

Question 16Emergency Care Clinical Practice and Patient Management

A patient with a suspected acute coronary syndrome has ongoing chest pain. Which action is most appropriate while awaiting definitive reperfusion?

  1. Withhold all medications until transfer
  2. Administer a thrombolytic without an electrocardiogram
  3. Give intravenous fluids as the primary therapy
  4. Administer aspirin and obtain a 12-lead electrocardiogram promptly Correct answer.

Explanation

Early aspirin and prompt 12-lead electrocardiography guide diagnosis and reperfusion decisions in acute coronary syndrome. Thrombolytics require electrocardiographic confirmation and are not given blindly.

Question 17Emergency Care Clinical Practice and Patient Management

Which patient is at highest risk for a difficult bag-mask ventilation and should prompt early preparation for alternative airway strategies?

  1. A patient with a single small laceration
  2. A patient with mild seasonal allergies
  3. A patient with a beard, obesity, and edentulous jaw Correct answer.
  4. A young patient with normal body habitus

Explanation

Beard, obesity, and an edentulous jaw are recognized predictors of difficult mask seal and ventilation, warranting early planning for adjuncts or advanced airway. The other presentations lack these predictors.

Question 18Emergency Care Clinical Practice and Patient Management

A patient with severe dehydration from gastroenteritis is being assessed. Which finding best indicates the need for intravenous rather than oral rehydration?

  1. Dry mucous membranes alone
  2. A single episode of diarrhea
  3. Altered mental status with inability to tolerate oral intake Correct answer.
  4. Mild thirst

Explanation

Altered mental status and inability to tolerate oral intake indicate severe dehydration requiring intravenous rehydration. Mild thirst, isolated dry mucosa, or a single diarrheal episode can often be managed orally.

Question 19Emergency Care Clinical Practice and Patient Management

A patient is found unresponsive and not breathing normally, and no pulse is detected. What is the correct sequence of actions for a single rescuer?

  1. Start with abdominal thrusts
  2. Give two rescue breaths before any compressions
  3. Activate emergency response, begin chest compressions, and provide ventilations at the recommended ratio Correct answer.
  4. Check for a pulse for two full minutes

Explanation

For an unresponsive patient without normal breathing or pulse, the rescuer activates the emergency response system and begins high-quality chest compressions with ventilations at the recommended compression-to-ventilation ratio. Delaying compressions reduces survival.

Question 20Emergency Care Clinical Practice and Patient Management

A trauma patient has a suspected pelvic fracture and hypotension. Which intervention best addresses the associated hemorrhage risk?

  1. Immediate hip range-of-motion exercises
  2. Log-rolling the patient repeatedly for assessment
  3. Aggressive crystalloid infusion alone
  4. Application of a pelvic binder and early blood product resuscitation Correct answer.

Explanation

A pelvic binder stabilizes the fracture and reduces pelvic volume, while early balanced blood product resuscitation addresses hemorrhagic shock. Excessive crystalloid and repeated manipulation can worsen outcomes.

Question 21Emergency Care Clinical Practice and Patient Management

A patient presents with a suspected acute abdomen and signs of peritonitis. What is the most appropriate initial management priority?

  1. Observation for 24 hours without imaging
  2. Intravenous access, analgesia, and urgent surgical consultation Correct answer.
  3. Immediate oral intake to test tolerance
  4. Discharge with oral antibiotics

Explanation

Suspected peritonitis requires intravenous access, analgesia, and urgent surgical evaluation because it often signals a condition needing operative intervention. Oral intake and outpatient management risk deterioration.

Question 22Emergency Care Clinical Practice and Patient Management

Which statement about the use of supplemental oxygen in emergency care is most accurate?

  1. Oxygen has no role in emergency management
  2. Give 100 percent oxygen to every patient regardless of saturation
  3. Withhold oxygen from all patients with chronic lung disease
  4. Titrate oxygen to a target saturation appropriate for the condition rather than giving maximal flow routinely Correct answer.

Explanation

Oxygen should be titrated to condition-specific target saturations because routine high-flow oxygen can be harmful in some patients, such as those with chronic hypercapnic respiratory disease. Individualized targets balance oxygenation and safety.

Question 23Emergency Care Clinical Practice and Patient Management

A patient with a severe asthma exacerbation is not responding to initial bronchodilators. Which adjunct is most appropriate to consider for a life-threatening presentation?

  1. Oral antihistamine
  2. Intravenous magnesium sulfate Correct answer.
  3. Beta-blocker
  4. Diuretic

Explanation

Intravenous magnesium sulfate is an evidence-supported adjunct in severe asthma exacerbations that do not respond to initial bronchodilator therapy. Beta-blockers can worsen bronchospasm, and antihistamines or diuretics do not treat the obstruction.

Question 24Emergency Care Clinical Practice and Patient Management

A patient in the emergency department has a rapidly deteriorating level of consciousness with unequal pupils. Which action is most appropriate?

  1. Administer a sedative and reassess in one hour
  2. Urgent neuroimaging and measures to reduce intracranial pressure Correct answer.
  3. Position the patient flat and restrict all monitoring
  4. Discharge with outpatient follow-up

Explanation

A declining level of consciousness with unequal pupils suggests herniation or a mass lesion, requiring urgent neuroimaging and measures to control intracranial pressure. Delay or sedation without evaluation risks further deterioration.

Question 25Emergency Care Clinical Practice and Patient Management

Which measure is most effective for preventing the spread of infection during resuscitation of a patient with a suspected transmissible respiratory pathogen?

  1. Crowding additional responders into the resuscitation area
  2. Use of appropriate personal protective equipment and hand hygiene Correct answer.
  3. Reusing gloves between patients
  4. Skipping hand hygiene when gloves are worn

Explanation

Appropriate personal protective equipment combined with hand hygiene is the cornerstone of infection prevention during resuscitation. Reusing gloves, omitting hand hygiene, and crowding increase transmission risk.

Question 26Emergency Care Clinical Practice and Patient Management

A patient arrives in the emergency department with a presumed diagnosis of an acute overdose but is somnolent with a protected airway. Which initial action best reflects the principle of stabilization before diagnosis?

  1. Collect a detailed medication history from family members
  2. Obtain a comprehensive toxicology screen before any treatment
  3. Wait for laboratory confirmation before initiating therapy
  4. Perform a focused assessment of airway, breathing, and circulation Correct answer.

Explanation

Emergency management is organized around identifying and correcting immediate threats to airway, breathing, and circulation before diagnostic certainty is achieved. Definitive diagnosis can proceed in parallel but must not delay stabilization.

Question 27Emergency Care Clinical Practice and Patient Management

Which finding is the most reliable early indicator that a patient's peripheral circulation is failing during an acute illness?

  1. Prolonged capillary refill with cool extremities Correct answer.
  2. A transient increase in urine output
  3. Mild resting tachycardia in an anxious patient
  4. A single normal blood pressure reading

Explanation

Perfusion is assessed through composite findings such as capillary refill, skin temperature, and mentation rather than a single vital sign. Cool, mottled extremities with delayed refill suggest inadequate peripheral perfusion before frank hypotension appears.

Question 28Emergency Care Clinical Practice and Patient Management

A patient with a known severe allergy is being observed after exposure. Which feature most strongly indicates that observation should be extended rather than discharged early?

  1. A history of mild seasonal rhinitis
  2. Isolated localized itching at the exposure site
  3. Resolution of urticaria within thirty minutes
  4. Prior requirement for repeated epinephrine dosing Correct answer.

Explanation

Patients who required more than one dose of epinephrine or who have severe prior reactions are at risk for protracted or biphasic courses and warrant extended observation. Localized or rapidly resolving symptoms carry lower risk.

Question 29Emergency Care Clinical Practice and Patient Management

During resuscitation, which action best limits exposure risk when a patient has a suspected highly transmissible respiratory pathogen?

  1. Relying on standard precautions alone during aerosol-generating procedures
  2. Deferring all airway interventions until test results return
  3. Applying transmission-based precautions with appropriate respiratory protection Correct answer.
  4. Assigning the least experienced staff to minimize exposure of senior clinicians

Explanation

Transmission-based precautions add pathogen-specific barriers on top of standard precautions, and aerosol-generating procedures require fitted respiratory protection. Deferring necessary airway care is unsafe for the patient.

Question 30Emergency Care Clinical Practice and Patient Management

A patient with an acute behavioral emergency is agitated and poses a risk to self and staff. Which approach best reflects appropriate initial management?

  1. Verbal de-escalation with attention to environmental safety Correct answer.
  2. Discharge before assessment once agitation subsides
  3. Administering sedating medication before any assessment
  4. Immediate physical restraint without verbal de-escalation

Explanation

De-escalation and environmental safety are first-line measures for acute agitation, with pharmacologic or physical intervention reserved for escalating risk. Assessment for underlying medical causes must continue throughout.

Question 31Emergency Care Clinical Practice and Patient Management

Which statement best describes the role of a systematic handoff when transferring a critically ill patient between emergency and inpatient teams?

  1. It is only required when the patient is unstable
  2. It ensures key clinical information and pending tasks are communicated Correct answer.
  3. It should focus primarily on administrative billing details
  4. It replaces the need for a written record

Explanation

Structured handoffs transfer essential clinical information, pending results, and anticipated needs, reducing omissions during transitions of care. They complement, rather than replace, documentation.

Question 32Emergency Care Clinical Practice and Patient Management

A patient with a suspected cervical spine injury must be moved from a vehicle. Which principle best guides the movement?

  1. Move the patient rapidly without regard to spinal alignment
  2. Remove cervical immobilization to improve airway access
  3. Delay movement until imaging confirms injury
  4. Maintain manual in-line stabilization during the transfer Correct answer.

Explanation

Manual in-line stabilization limits motion of the injured spine during extrication and transfer. Immobilization should not be removed solely for convenience, and imaging should not delay necessary movement.

Question 33Emergency Care Clinical Practice and Patient Management

A patient presents with suspected heat stroke after exertion. Which feature most distinguishes heat stroke from heat exhaustion?

  1. Presence of profuse sweating
  2. Thirst with mild fatigue
  3. Muscle cramping after exercise
  4. Altered mental status with core temperature elevation Correct answer.

Explanation

Heat stroke is characterized by central nervous system dysfunction, such as altered mentation, together with significant hyperthermia. Heat exhaustion lacks marked neurologic impairment.

Question 34Emergency Care Clinical Practice and Patient Management

A patient with severe hypothermia is being rewarmed. Which statement about management is most accurate?

  1. External rewarming alone is adequate for severe hypothermia
  2. Vigorous limb movement improves peripheral rewarming
  3. Rough handling can precipitate dangerous dysrhythmias Correct answer.
  4. Rewarming should be deferred until core temperature is measured invasively

Explanation

The severely hypothermic myocardium is irritable, and rough handling or movement can trigger ventricular dysrhythmias. Gentle handling and active core rewarming are priorities in severe cases.

Question 35Emergency Care Clinical Practice and Patient Management

A patient with a suspected large-volume vomiting illness has a potassium of 2.9 mmol/L and reports weakness. Which action is most appropriate?

  1. Restrict fluids to prevent further dilution
  2. Administer potassium replacement with appropriate monitoring Correct answer.
  3. Give a large oral potassium load without cardiac monitoring
  4. Withhold all potassium until the level normalizes spontaneously

Explanation

Symptomatic hypokalemia with weakness warrants careful potassium replacement, often with cardiac monitoring depending on severity and route. Replacement should be guided by the level, symptoms, and renal function.

Question 36Emergency Care Clinical Practice and Patient Management

A patient with a suspected acute adrenal crisis presents with hypotension unresponsive to fluids. Which therapy is most appropriate to add?

  1. Aggressive diuresis
  2. Oral potassium supplementation
  3. Beta-blockade to control reflex tachycardia
  4. Intravenous glucocorticoid therapy Correct answer.

Explanation

Adrenal crisis produces catecholamine-resistant hypotension and requires prompt glucocorticoid replacement along with fluid resuscitation. Diuresis or beta-blockade would worsen the hemodynamic state.

Question 37Emergency Care Clinical Practice and Patient Management

A patient with a suspected thyroid storm presents with fever, agitation, and tachycardia. Which management principle is most appropriate?

  1. Prioritize diuresis to lower heart rate
  2. Treat with supportive measures only until thyroid studies return
  3. Initiate combined therapy targeting hormone synthesis and peripheral effects Correct answer.
  4. Give a single dose of levothyroxine to restore balance

Explanation

Thyroid storm is treated empirically with combined therapy that blocks hormone synthesis and attenuates peripheral effects, alongside supportive care. Treatment should not await laboratory confirmation.

Question 38Emergency Care Clinical Practice and Patient Management

A patient with a suspected diabetic emergency is confused, and a bedside glucose measurement is unavailable. Which action is most appropriate?

  1. Give oral fluids only and reassess in one hour
  2. Administer glucose empirically while obtaining a confirmatory reading Correct answer.
  3. Withhold treatment until a laboratory glucose result returns
  4. Administer insulin empirically for presumed hyperglycemia

Explanation

When hypoglycemia is suspected and rapid confirmation is delayed, empiric glucose is appropriate because untreated hypoglycemia causes rapid neurologic injury. It is generally safe even if the patient proves euglycemic.

Question 39Emergency Care Clinical Practice and Patient Management

A patient with a suspected upper gastrointestinal bleed is tachycardic and pale. Which initial management step is most appropriate?

  1. Immediate oral intake to assess tolerance
  2. Administration of a prokinetic agent before stabilization
  3. Large-bore intravenous access with volume resuscitation Correct answer.
  4. Discharge with outpatient endoscopy scheduling

Explanation

Acute upper gastrointestinal bleeding with hemodynamic signs requires secure large-bore access and volume resuscitation before definitive diagnostic or therapeutic procedures. Oral intake and prokinetics are not initial priorities.

Question 40Emergency Care Clinical Practice and Patient Management

A patient with suspected acute pancreatitis has severe pain and is vomiting. Which management element is most appropriate initially?

  1. Urgent surgical exploration for all presentations
  2. Intravenous fluids with analgesia and antiemetics Correct answer.
  3. Immediate oral feeding to stimulate bowel function
  4. Routine prophylactic antibiotics in all cases

Explanation

Initial management of acute pancreatitis focuses on volume resuscitation, pain control, and antiemetics, with early feeding resumed as tolerated once the patient stabilizes. Prophylactic antibiotics and routine surgery are not indicated for all cases.

Question 41Emergency Care Clinical Practice and Patient Management

A patient with a suspected urinary tract obstruction presents with flank pain and decreased urine output. Which finding most suggests an obstructive cause requiring urgent decompression?

  1. Bilateral hydronephrosis on imaging with rising creatinine Correct answer.
  2. Isolated dysuria without systemic symptoms
  3. Mildly elevated white blood cell count
  4. A single episode of gross hematuria

Explanation

Obstructive uropathy with bilateral hydronephrosis and worsening renal function indicates obstruction that may require urgent decompression. Dysuria or isolated hematuria alone are nonspecific.

Question 42Emergency Care Clinical Practice and Patient Management

A patient with a suspected ectopic pregnancy presents with abdominal pain and vaginal bleeding. Which action is the priority?

  1. Immediate assessment for hemodynamic instability and intraperitoneal bleeding Correct answer.
  2. Routine outpatient follow-up in one week
  3. Administration of a fertility medication
  4. Elective scheduling of a confirmatory scan

Explanation

A suspected ectopic pregnancy is a time-critical diagnosis because of the risk of rupture and hemorrhage, so immediate assessment for instability and intraperitoneal bleeding is the priority.

Question 43Emergency Care Clinical Practice and Patient Management

A patient with a suspected open fracture of the lower leg is being prepared for transfer. Which initial measure is most appropriate?

  1. Covering the wound with a sterile dressing and immobilizing the limb Correct answer.
  2. Removing all foreign material by sharp debridement
  3. Irrigating and probing the wound extensively in the field
  4. Delaying immobilization until orthopedic consultation

Explanation

Open fractures require wound coverage with a sterile dressing and limb immobilization to limit contamination and further injury before definitive care. Extensive field irrigation, probing, or debridement should be avoided.

Question 44Emergency Care Clinical Practice and Patient Management

A patient with a suspected arterial injury to the extremity has a pulseless, pale limb. Which action is most appropriate?

  1. Elevating the limb above the heart and massaging the calf
  2. Delaying evaluation until swelling resolves
  3. Applying a tight circumferential bandage and observing
  4. Obtaining urgent vascular assessment while supporting perfusion Correct answer.

Explanation

A pulseless, pale limb suggests arterial compromise and requires urgent vascular evaluation with measures to support perfusion. Circumferential bandaging, massage, or delay can worsen ischemia.

Question 45Emergency Care Clinical Practice and Patient Management

A patient with a suspected traumatic brain injury is being managed in the emergency setting. Which measure best supports cerebral perfusion?

  1. Routine fluid restriction
  2. Hyperventilation to a very low carbon dioxide level in all patients
  3. Permissive hypotension to reduce bleeding
  4. Maintaining adequate oxygenation and avoiding systemic hypotension Correct answer.

Explanation

Avoiding hypoxia and systemic hypotension preserves cerebral perfusion pressure after traumatic brain injury. Aggressive hyperventilation is reserved for specific herniation concerns, and fluid restriction can worsen perfusion.

Question 46Emergency Care Clinical Practice and Patient Management

A patient has a suspected foreign body in the eye after grinding metal. Which action is most appropriate?

  1. Removing the object with a cotton swab at the bedside
  2. Irrigating vigorously with a high-pressure stream
  3. Applying a pressure patch over the closed eyelid
  4. Placing a protective shield and obtaining urgent ophthalmologic evaluation Correct answer.

Explanation

A suspected penetrating or metallic intraocular foreign body should be protected with a shield while urgent ophthalmologic evaluation is arranged. Blind removal, high-pressure irrigation, or pressure patching can worsen injury.

Question 47Emergency Care Clinical Practice and Patient Management

A patient with a suspected chemical burn to the skin arrives after exposure. Which initial action is most appropriate?

  1. Neutralizing the chemical with a strong acid or base
  2. Waiting for a burn center consultation before irrigation
  3. Removing contaminated clothing and irrigating copiously with water Correct answer.
  4. Applying an occlusive ointment before decontamination

Explanation

Chemical burns require prompt removal of contaminated clothing and copious water irrigation to dilute and remove the agent. Chemical neutralization can generate heat and worsen tissue injury.

Question 48Emergency Care Clinical Practice and Patient Management

A patient with a suspected severe envenomation after a snakebite is being assessed. Which action is most appropriate for the affected limb?

  1. Applying ice directly to the bite site
  2. Applying a tight tourniquet proximal to the bite
  3. Immobilizing the limb at or near heart level and arranging definitive care Correct answer.
  4. Cutting the wound and suctioning the venom

Explanation

Snakebite management emphasizes limb immobilization near heart level and rapid transport for antivenom evaluation. Tourniquets, incision, suction, and ice can cause additional harm.

Question 49Emergency Care Clinical Practice and Patient Management

A patient with a suspected drowning is pulled from the water and is apneic. Which principle best guides initial resuscitation?

  1. Apply cervical immobilization only after return of circulation
  2. Begin rescue breathing promptly with attention to oxygenation Correct answer.
  3. Prioritize abdominal thrusts to clear water from the lungs
  4. Delay ventilation until chest compressions are complete

Explanation

Drowning resuscitation emphasizes early ventilation and oxygenation because hypoxia is the primary insult. Routine abdominal thrusts to remove water are not recommended, and ventilation should not be delayed.

Question 50Emergency Care Clinical Practice and Patient Management

A patient with a suspected severe allergic reaction has been treated and is now stable. Which disposition consideration is most important?

  1. Discontinue all medications to avoid further reactions
  2. Schedule a routine allergy appointment in several months
  3. Observe for recurrence given the risk of a biphasic reaction Correct answer.
  4. Discharge immediately because symptoms have resolved

Explanation

After stabilization of anaphylaxis, observation is warranted because biphasic reactions can occur after apparent resolution. Abrupt discontinuation of indicated medications or immediate discharge is inappropriate.