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AANPCB PMHNP-C study materials
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AANPCB PMHNP-C practice questions

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Question 1Assess

A 24-year-old presents with depressed mood for 3 weeks, anhedonia, insomnia, and difficulty concentrating at work. Which screening instrument is most appropriate to quantify baseline depression severity and monitor treatment response?

  1. PHQ-9 Correct answer.
  2. CAGE
  3. AUDIT
  4. MMSE

Explanation

The PHQ-9 maps directly to DSM depressive criteria and yields a severity score useful for tracking treatment response over time. Brief severity scales are preferred at baseline so change can be measured objectively.

Question 2Assess

Which finding is most characteristic of a panic attack rather than generalized anxiety?

  1. Persistent worry lasting most days for months
  2. Fear confined to a single social situation
  3. Abrupt peak of intense fear within minutes Correct answer.
  4. Excessive worry about multiple life domains

Explanation

Panic attacks are defined by an abrupt surge of fear that reaches a peak within minutes. Generalized anxiety and social anxiety involve more sustained or situationally bound worry.

Question 3Assess

A patient reports hearing two voices commenting on his actions and believes the government is monitoring him. On mental status exam, which element is being directly assessed when he describes these experiences?

  1. Insight and judgment
  2. Orientation and memory
  3. Thought content and perceptual disturbance Correct answer.
  4. Attention and concentration

Explanation

Delusions reflect thought content, and hallucinations reflect perceptual disturbance; both are documented under those MSE headings. Orientation, memory, and attention are cognitive domains assessed separately.

Question 4Assess

Which laboratory test is most important to obtain before starting lithium in a new patient?

  1. Serum creatinine and thyroid function Correct answer.
  2. Hemoglobin A1c
  3. Prostate-specific antigen
  4. Serum amylase

Explanation

Lithium is renally cleared and can cause nephrogenic and thyroid toxicity, so baseline renal and thyroid function guide dosing and monitoring. These organ systems determine safe use of the drug.

Question 5Assess

A 19-year-old college student is brought in after 4 days of decreased need for sleep, rapid pressured speech, grandiosity, and impulsive spending. Which assessment question is most critical to clarify the diagnosis?

  1. Whether the patient exercises regularly
  2. Whether the patient has seasonal allergies
  3. Whether there has ever been a distinct period of depressed mood or anhedonia Correct answer.
  4. Whether family members have hypertension

Explanation

Distinguishing bipolar I from a primary psychotic or substance-induced presentation depends on identifying prior or current depressive episodes and the longitudinal course. This history shapes diagnosis and treatment selection.

Question 6Assess

Which screening tool is designed specifically to detect hazardous drinking in primary care?

  1. MDQ
  2. PHQ-2
  3. GAD-7
  4. AUDIT Correct answer.

Explanation

The AUDIT was developed to identify hazardous and harmful alcohol consumption. The GAD-7, PHQ-2, and MDQ screen for anxiety, depression, and bipolar disorder respectively.

Question 7Assess

A patient with schizophrenia has been stable on antipsychotics and reports no side effects. Which baseline and follow-up monitoring is standard for metabolic risk?

  1. Weight, waist circumference, blood pressure, glucose, and lipids Correct answer.
  2. Serial EEG every 6 months
  3. Annual lumbar puncture
  4. Monthly serum lithium levels

Explanation

Second-generation antipsychotics carry metabolic risk, so weight, waist circumference, blood pressure, glucose, and lipids are monitored at baseline and periodically. This panel detects cardiometabolic adverse effects early.

Question 8Assess

A 7-year-old is referred for inattention and hyperactivity. Which collateral source provides the most useful diagnostic information?

  1. The child's own self-report alone
  2. The child's report card grades
  3. Teacher rating scales and classroom observations Correct answer.
  4. A single parent interview only

Explanation

ADHD requires symptoms across settings, so teacher ratings and observations supplement parent report to establish cross-situational impairment. Multi-informant data reduce diagnostic error.

Question 9Assess

A 30-year-old reports binge-eating episodes twice weekly for 4 months with marked distress but no purging. Which diagnosis best fits?

  1. Binge-eating disorder Correct answer.
  2. Bulimia nervosa
  3. Anorexia nervosa, binge-purge type
  4. Avoidant/restrictive food intake disorder

Explanation

Binge-eating disorder involves recurrent binge episodes without compensatory behaviors and with distress. Bulimia requires purging or other compensation, and anorexia requires low weight.

Question 10Assess

Which question best screens for suicidal risk during an initial psychiatric assessment?

  1. Asking about childhood pets
  2. Asking about caffeine intake
  3. Directly asking about thoughts of self-harm and any plan or intent Correct answer.
  4. Asking whether the patient feels tired

Explanation

Direct inquiry about suicidal ideation, plan, intent, and access to means is the standard of care and does not increase risk. Indirect questions fail to identify acuity.

Question 11Assess

A patient on an SSRI reports new-onset agitation, tremor, and hyperreflexia after dose increase. Which assessment finding would most support serotonin syndrome?

  1. Flaccid paralysis
  2. Clonus and hyperthermia Correct answer.
  3. Pinpoint pupils
  4. Bradycardia and hypotension

Explanation

Serotonin syndrome presents with autonomic instability, neuromuscular hyperactivity including clonus, and altered mental status. Clonus and hyperthermia are characteristic.

Question 12Assess

Which assessment is most important before initiating an SSRI in a patient with bipolar disorder?

  1. Performing a skin biopsy
  2. Checking serum lithium level
  3. Measuring serum amylase
  4. Screening for current or past mania or hypomania Correct answer.

Explanation

Antidepressant monotherapy can precipitate mania or rapid cycling in bipolar disorder, so manic and hypomanic history must be established. Mood stabilizer coverage may be required.

Question 13Assess

A 68-year-old presents with new-onset psychosis and cognitive decline over 2 months. Which initial assessment step is most appropriate?

  1. Obtain a delirium workup and neuroimaging Correct answer.
  2. Refer for long-term psychotherapy
  3. Reassure the family and observe
  4. Start an antipsychotic immediately

Explanation

New cognitive and psychotic symptoms in older adults warrant evaluation for delirium, medical causes, and structural brain disease before attributing them to a primary psychiatric disorder. Early medical workup is essential.

Question 14Assess

Which feature most reliably distinguishes posttraumatic stress disorder from acute stress disorder?

  1. Presence of nightmares
  2. Duration of symptoms beyond one month Correct answer.
  3. Avoidance of reminders
  4. Hyperarousal symptoms

Explanation

Acute stress disorder and PTSD share symptoms, but PTSD requires symptoms persisting beyond one month. Duration is the distinguishing criterion.

Question 15Assess

A patient reports palpitations, sweating, and fear of dying that occur only in social situations. Which assessment question most helps differentiate panic disorder from social anxiety disorder?

  1. Whether the patient sleeps well
  2. Whether the patient has a family history of diabetes
  3. Whether the patient drinks coffee
  4. Whether attacks occur exclusively in feared social situations Correct answer.

Explanation

Panic attacks in social anxiety disorder are situationally bound to social exposure, whereas panic disorder attacks are unexpected. Clarifying triggers separates the diagnoses.

Question 16Assess

Which laboratory abnormality should be ruled out when a patient presents with first-episode psychosis?

  1. Low serum iron
  2. Elevated creatine kinase only
  3. Thyroid dysfunction and substance use Correct answer.
  4. Elevated alkaline phosphatase

Explanation

Medical mimics of psychosis include thyroid disease and substance intoxication or withdrawal, which must be excluded. Screening for these prevents misattribution to a primary psychotic disorder.

Question 17Assess

A 45-year-old reports 6 months of fatigue, poor sleep, and low mood. Which additional history most increases suspicion for obstructive sleep apnea rather than major depression?

  1. Loud snoring and witnessed apneas Correct answer.
  2. Feelings of worthlessness
  3. Early morning awakening
  4. Anhedonia

Explanation

Loud snoring and witnessed apneas point to sleep-disordered breathing, which can mimic depression with fatigue and low mood. Identifying these features directs sleep evaluation.

Question 18Assess

Which finding on mental status exam most suggests delirium rather than dementia?

  1. Acute onset with fluctuating attention Correct answer.
  2. Gradual memory decline over years
  3. Preserved orientation
  4. Stable personality throughout

Explanation

Delirium is characterized by acute onset and fluctuating attention and awareness, while dementia is typically gradual and progressive. This distinction drives urgent medical evaluation.

Question 19Assess

A patient on clozapine develops fever and sore throat. Which assessment is most urgent?

  1. Liver biopsy
  2. Serum lithium level
  3. Complete blood count with absolute neutrophil count Correct answer.
  4. EEG

Explanation

Clozapine can cause agranulocytosis, and fever with sore throat may signal neutropenia requiring immediate CBC. Prompt detection prevents life-threatening infection.

Question 20Assess

Which assessment best evaluates a patient's capacity to make treatment decisions?

  1. Family preference
  2. Mini-Mental State Examination score alone
  3. Understanding, appreciation, reasoning, and expressing a choice Correct answer.
  4. Patient's age and education

Explanation

Decision-making capacity rests on four functional abilities: understanding, appreciation, reasoning, and communicating a choice. Cognitive scores alone do not determine capacity.

Question 21Assess

A 16-year-old presents with irritability and mood swings. Which historical feature most supports bipolar disorder over disruptive mood dysregulation disorder?

  1. Distinct episodes of elevated mood and decreased need for sleep Correct answer.
  2. Chronic irritability nearly every day for over a year
  3. Frequent temper outbursts at home
  4. Onset before age 10

Explanation

Bipolar disorder requires distinct mood episodes, including elevated mood with decreased need for sleep, whereas DMDD involves chronic irritability without discrete episodes. Episodic mood change is the key discriminator.

Question 22Assess

Which assessment finding most strongly predicts withdrawal risk in a patient with long-standing heavy alcohol use?

  1. Elevated liver enzymes
  2. Report of morning drinking
  3. History of prior withdrawal seizures or delirium tremens Correct answer.
  4. Daily drinking for 2 years

Explanation

A prior withdrawal seizure or delirium tremens is the strongest predictor of complicated withdrawal and warrants medically supervised detoxification. Prior complicated withdrawal history outweighs other markers.

Question 23Assess

Which assessment approach best distinguishes obsessive-compulsive disorder from generalized anxiety disorder?

  1. Counting the number of worries per day
  2. Measuring blood pressure
  3. Determining whether worries are intrusive and resisted versus diffuse and pervasive Correct answer.
  4. Asking about caffeine use

Explanation

OCD involves intrusive, unwanted thoughts that are resisted and often paired with rituals, while generalized anxiety involves diffuse worry about real-life concerns. The quality and resistance of thoughts separate them.

Question 24Assess

A patient describes episodes of derealization and depersonalization lasting minutes, with a history of childhood trauma. Which diagnosis should be considered first when these symptoms occur independently of other disorders?

  1. Panic disorder
  2. Schizophrenia
  3. Depersonalization/derealization disorder Correct answer.
  4. Bipolar I disorder

Explanation

Depersonalization/derealization disorder is defined by persistent or recurrent episodes of detachment or unreality without another explanatory disorder. When these symptoms are the primary complaint, this diagnosis is considered first.

Question 25Assess

Which measure is most appropriate for screening cognitive impairment in a patient with limited formal education?

  1. The MMSE alone
  2. The CAGE
  3. The PHQ-9
  4. A culturally adapted instrument such as the Mini-Cog Correct answer.

Explanation

The Mini-Cog is brief, less education-dependent, and useful for detecting cognitive impairment across educational backgrounds. Instruments heavily influenced by education may misclassify.

Question 26Assess

Which element is essential to obtain when taking a sexual history from a new adult patient?

  1. History of consensual sexual activity
  2. Use of contraception and barrier protection Correct answer.
  3. Number of siblings in the family
  4. Childhood immunization records

Explanation

A sexual history should include practices, protection use, and risk factors for sexually transmitted infections. Asking about contraception and barrier protection directly assesses risk and guides screening.

Question 27Assess

Which screening instrument is specifically designed to identify problematic alcohol use in primary care settings?

  1. AUDIT-C Correct answer.
  2. MMSE
  3. GAD-7
  4. PHQ-9

Explanation

The AUDIT-C is a brief alcohol screen validated for primary care. It focuses on consumption patterns and is sensitive to hazardous drinking.

Question 28Assess

Which symptom is most characteristic of a panic attack?

  1. Amnesia for personal identity
  2. Intense fear peaking within minutes Correct answer.
  3. Auditory hallucinations
  4. Anhedonia lasting at least two weeks

Explanation

Panic attacks are defined by abrupt onset of intense fear that peaks rapidly, usually within minutes. This rapid crescendo distinguishes panic from more sustained anxiety.

Question 29Assess

Which finding on mental status examination is most consistent with a manic episode?

  1. Thought blocking
  2. Pressured speech Correct answer.
  3. Flat affect
  4. Psychomotor retardation

Explanation

Manic episodes are characterized by increased goal-directed activity and energy, often manifesting as rapid, pressured speech. Psychomotor retardation and flat affect are more typical of depression or negative symptoms.

Question 30Assess

Which statement best describes the purpose of using a structured diagnostic interview in psychiatric assessment?

  1. It replaces the need for a mental status examination.
  2. It ensures consistent and reliable diagnostic data collection. Correct answer.
  3. It is used only for research and not in clinical practice.
  4. It provides a definitive diagnosis without clinical judgment.

Explanation

Structured interviews standardize the questions and criteria used, improving inter-rater reliability and consistency. They support, but do not replace, clinical judgment and the mental status examination.

Question 31Assess

Which laboratory test is routinely recommended before starting lithium therapy?

  1. Serum creatinine Correct answer.
  2. Liver function tests
  3. Prothrombin time
  4. Hemoglobin A1c

Explanation

Lithium is renally excreted and can cause nephrogenic diabetes insipidus and renal impairment. Baseline renal function, including serum creatinine, is essential before initiation.

Question 32Assess

Which symptom is a core feature of major depressive disorder?

  1. Flight of ideas
  2. Ideas of reference
  3. Anhedonia Correct answer.
  4. Grandiosity

Explanation

Anhedonia, or loss of interest or pleasure, is one of the two cardinal symptoms of major depression. Flight of ideas, grandiosity, and ideas of reference are more characteristic of mania or psychosis.

Question 33Assess

Which assessment question is most useful for evaluating a patient's adherence to prescribed psychiatric medication?

  1. Do you take your medication as prescribed?
  2. Have you ever stopped your medication?
  3. How many doses did you miss in the past week? Correct answer.
  4. Do you like your medication?

Explanation

Asking about the number of missed doses in a specified recent period yields more specific and reliable information than a yes/no question. It reduces social desirability bias and quantifies adherence.

Question 34Assess

Which feature most strongly suggests a diagnosis of schizophrenia rather than schizoaffective disorder?

  1. Presence of delusions
  2. Mood episodes occur only during active psychotic symptoms Correct answer.
  3. Duration of illness greater than six months
  4. Impaired social or occupational functioning

Explanation

In schizophrenia, mood episodes are brief relative to the total duration of psychotic symptoms. In schizoaffective disorder, mood episodes are present for a substantial portion of the illness and delusions or hallucinations occur for at least two weeks without mood symptoms.

Question 35Assess

Which risk factor is most strongly associated with completed suicide in patients with psychiatric illness?

  1. Previous suicide attempt Correct answer.
  2. Female sex
  3. Young age at onset of illness
  4. Married status

Explanation

A prior suicide attempt is the single strongest clinical predictor of completed suicide. Other high-risk factors include male sex, social isolation, and access to lethal means.

Question 36Assess

A 28-year-old presents with recurrent, unexpected panic attacks and worries constantly about having another attack. Which diagnosis is most likely?

  1. Specific phobia
  2. Social anxiety disorder
  3. Generalized anxiety disorder
  4. Panic disorder Correct answer.

Explanation

Panic disorder is characterized by recurrent unexpected panic attacks and persistent concern about future attacks or their consequences. The unexpected nature and worry about attacks differentiate it from other anxiety disorders.

Question 37Assess

Which assessment finding best distinguishes bipolar II disorder from major depressive disorder?

  1. Chronic course lasting more than two years
  2. Family history of depression
  3. Presence of psychotic features during depression
  4. History of at least one hypomanic episode Correct answer.

Explanation

Bipolar II disorder requires at least one hypomanic episode and one major depressive episode. Without a history of hypomania, the presentation is classified as major depressive disorder.

Question 38Assess

A patient with alcohol use disorder is being assessed for withdrawal risk. Which factor most strongly predicts severe withdrawal?

  1. History of prior withdrawal seizures Correct answer.
  2. Family history of alcohol use disorder
  3. Drinking primarily on weekends
  4. Age over 50 years

Explanation

A history of complicated withdrawal, such as seizures or delirium tremens, is the strongest predictor of future severe withdrawal. Such patients require close monitoring and possibly inpatient management.

Question 39Assess

Which assessment tool is most appropriate for screening for cognitive impairment in a patient with limited formal education?

  1. Montreal Cognitive Assessment (MoCA)
  2. Clock Drawing Test alone
  3. Mini-Cog Correct answer.
  4. Mini-Mental State Examination (MMSE)

Explanation

The Mini-Cog is less influenced by education and cultural background than the MMSE or MoCA. It combines a three-item recall with a clock drawing and is suitable for brief screening in diverse populations.

Question 40Assess

A 35-year-old presents with excessive worry about multiple areas for six months, along with restlessness and sleep disturbance. Which diagnosis is most likely?

  1. Generalized anxiety disorder Correct answer.
  2. Obsessive-compulsive disorder
  3. Panic disorder
  4. Adjustment disorder with anxiety

Explanation

Generalized anxiety disorder is characterized by excessive anxiety and worry about various domains occurring more days than not for at least six months, accompanied by symptoms such as restlessness and sleep disturbance.

Question 41Assess

Which assessment question is most important to ask a patient before initiating an SSRI for depression?

  1. Have you ever taken antibiotics?
  2. Do you drink caffeinated beverages?
  3. How many hours do you sleep each night?
  4. Have you ever had a manic or hypomanic episode? Correct answer.

Explanation

Screening for a history of mania or hypomania is critical before starting an antidepressant because it can precipitate a manic episode in patients with bipolar disorder. This history guides the choice of mood stabilizer or alternative treatment.

Question 42Assess

Which finding on assessment most reliably distinguishes delirium from dementia?

  1. Disorientation to place
  2. Impaired memory
  3. Age over 65 years
  4. Acute onset and fluctuating course Correct answer.

Explanation

Delirium is characterized by an acute onset and a fluctuating level of attention and awareness. Dementia typically has an insidious, progressive course without prominent fluctuation in early stages.

Question 43Assess

A patient with schizophrenia reports hearing voices that comment on their actions. Which term best describes this symptom?

  1. Delusion of control
  2. Auditory hallucination Correct answer.
  3. Ideas of reference
  4. Thought broadcasting

Explanation

An auditory hallucination is a false sensory perception without external stimuli, such as hearing voices. Voices commenting on actions are a classic auditory hallucination in schizophrenia.

Question 44Assess

Which screening tool is most appropriate for detecting bipolar spectrum disorder in a patient presenting with depression?

  1. AUDIT
  2. MDQ Correct answer.
  3. PHQ-9
  4. GAD-7

Explanation

The Mood Disorder Questionnaire (MDQ) is a validated screening tool for bipolar spectrum disorders. It asks about manic and hypomanic symptoms and their clustering.

Question 45Assess

Which assessment finding most strongly suggests a diagnosis of obsessive-compulsive disorder rather than generalized anxiety disorder?

  1. Sleep disturbance
  2. Worry about multiple life domains
  3. Presence of repetitive behaviors performed to reduce distress Correct answer.
  4. Muscle tension

Explanation

Obsessive-compulsive disorder is characterized by obsessions and/or compulsions, which are repetitive behaviors or mental acts performed in response to an obsession or according to rigid rules. Generalized anxiety disorder involves diffuse worry without compulsions.

Question 46Assess

A 19-year-old presents with a 3-month history of low mood, insomnia, and weight loss. Which additional assessment is most important to determine the appropriate level of care?

  1. Childhood vaccination status
  2. Dietary preferences
  3. Family history of diabetes
  4. Suicidal ideation and plan Correct answer.

Explanation

Assessing suicidal ideation, intent, and plan is critical in any patient with depressive symptoms to determine risk and the need for urgent intervention or higher level of care. This takes precedence over other historical details.

Question 47Assess

Which assessment approach is most useful for differentiating dissociative identity disorder from schizophrenia?

  1. Assessing for auditory hallucinations
  2. Asking about gaps in memory for everyday events Correct answer.
  3. Checking for a family history of psychosis
  4. Evaluating for delusions of persecution

Explanation

Dissociative identity disorder is characterized by disruptions in identity and memory gaps that are not due to ordinary forgetting. Schizophrenia is characterized by psychotic symptoms without such identity fragmentation.

Question 48Assess

Which assessment question is most important when evaluating a patient for possible attention-deficit/hyperactivity disorder?

  1. Do you drink alcohol?
  2. Do you have trouble sleeping?
  3. Have you ever been hospitalized?
  4. Do symptoms occur in more than one setting? Correct answer.

Explanation

For ADHD, symptoms must be present in multiple settings (e.g., home, school, work) to meet diagnostic criteria. Establishing cross-situational presence helps distinguish ADHD from situational problems.

Question 49Assess

Which finding on assessment most strongly suggests a diagnosis of autism spectrum disorder rather than social anxiety disorder?

  1. Avoidance of social gatherings
  2. Fear of negative evaluation
  3. Blushing in social situations
  4. Deficits in nonverbal communication Correct answer.

Explanation

Autism spectrum disorder is characterized by persistent deficits in social communication and interaction, including nonverbal behaviors. Social anxiety disorder involves fear of scrutiny and negative evaluation rather than fundamental deficits in communication.

Question 50Assess

A patient with borderline personality disorder reports intense fear of abandonment and shifts between idealizing and devaluing others. Which term best describes this pattern?

  1. Splitting Correct answer.
  2. Rationalization
  3. Projection
  4. Denial

Explanation

Splitting is a defense mechanism in which individuals view others as all good or all bad, leading to abrupt shifts in relationships. It is characteristic of borderline personality disorder.