PSYCHIATRIC-MENTAL HEALTH
NURSE PRACTITIONER (PMHNP)
BOARD CERTIFICATION
COMPREHENSIVE EXAM (2026/2027)
QUESTIONS WITH VERIFIED ANSWERS
1. An excess of dopamine in which of the following pathways is primarily associated with the
positive symptoms of schizophrenia, such as hallucinations and delusions?
A. Mesocortical pathway
B. Nigrostriatal pathway
C. Mesolimbic pathway
D. Tuberoinfundibular pathway
Answer: C
Conceptual Explanation: The mesolimbic pathway projects from the ventral tegmental
area to the nucleus accumbens; overactivity (excess dopamine) here is linked to positive
symptoms. The mesocortical pathway is linked to negative symptoms (hypofunction).
2. A PMHNP is treating a patient with Clozapine. The absolute neutrophil count (ANC) drops
to 900/mm³. According to the Clozapine REMS program, what is the required action?
A. Continue treatment but monitor ANC weekly
,B. Interrupt treatment and notify the REMS registry
C. Reduce the dose by 50% and monitor daily
D. Add a granulocyte colony-stimulating factor (G-CSF)
Answer: B
Conceptual Explanation: For a general population patient, an ANC below 1000/mm³ is
classified as severe neutropenia, requiring treatment interruption and reporting to the
REMS registry.
3. Which cytochrome P450 enzyme is significantly inhibited by Fluoxetine and Paroxetine,
potentially increasing levels of certain beta-blockers and TCAs?
A. CYP1A2
B. CYP2C19
C. CYP2D6
D. CYP3A4
Answer: C
Conceptual Explanation: Fluoxetine and Paroxetine are potent inhibitors of CYP2D6,
which metabolizes many psychotropic medications, including TCAs and some
antipsychotics.
, 4. A 24-year-old female presents with rapid-cycling Bipolar Disorder. Which of the following
medications is considered a first-line mood stabilizer for rapid cycling?
A. Lithium
B. Oxcarbazepine
C. Lamotrigine
D. Valproate
Answer: D
Conceptual Explanation: Valproate (Depakote) is often more effective than Lithium for
rapid cycling and mixed episodes in Bipolar Disorder.
5. In differentiating Neuroleptic Malignant Syndrome (NMS) from Serotonin Syndrome, which
clinical finding is most characteristic of NMS?
A. Lead-pipe muscle rigidity
B. Myoclonus
C. Hyperreflexia
D. Dilated pupils
Answer: A
Conceptual Explanation: NMS is characterized by lead-pipe rigidity and bradyreflexia,
whereas Serotonin Syndrome features hyperreflexia, myoclonus, and midriasis (dilated
pupils).
NURSE PRACTITIONER (PMHNP)
BOARD CERTIFICATION
COMPREHENSIVE EXAM (2026/2027)
QUESTIONS WITH VERIFIED ANSWERS
1. An excess of dopamine in which of the following pathways is primarily associated with the
positive symptoms of schizophrenia, such as hallucinations and delusions?
A. Mesocortical pathway
B. Nigrostriatal pathway
C. Mesolimbic pathway
D. Tuberoinfundibular pathway
Answer: C
Conceptual Explanation: The mesolimbic pathway projects from the ventral tegmental
area to the nucleus accumbens; overactivity (excess dopamine) here is linked to positive
symptoms. The mesocortical pathway is linked to negative symptoms (hypofunction).
2. A PMHNP is treating a patient with Clozapine. The absolute neutrophil count (ANC) drops
to 900/mm³. According to the Clozapine REMS program, what is the required action?
A. Continue treatment but monitor ANC weekly
,B. Interrupt treatment and notify the REMS registry
C. Reduce the dose by 50% and monitor daily
D. Add a granulocyte colony-stimulating factor (G-CSF)
Answer: B
Conceptual Explanation: For a general population patient, an ANC below 1000/mm³ is
classified as severe neutropenia, requiring treatment interruption and reporting to the
REMS registry.
3. Which cytochrome P450 enzyme is significantly inhibited by Fluoxetine and Paroxetine,
potentially increasing levels of certain beta-blockers and TCAs?
A. CYP1A2
B. CYP2C19
C. CYP2D6
D. CYP3A4
Answer: C
Conceptual Explanation: Fluoxetine and Paroxetine are potent inhibitors of CYP2D6,
which metabolizes many psychotropic medications, including TCAs and some
antipsychotics.
, 4. A 24-year-old female presents with rapid-cycling Bipolar Disorder. Which of the following
medications is considered a first-line mood stabilizer for rapid cycling?
A. Lithium
B. Oxcarbazepine
C. Lamotrigine
D. Valproate
Answer: D
Conceptual Explanation: Valproate (Depakote) is often more effective than Lithium for
rapid cycling and mixed episodes in Bipolar Disorder.
5. In differentiating Neuroleptic Malignant Syndrome (NMS) from Serotonin Syndrome, which
clinical finding is most characteristic of NMS?
A. Lead-pipe muscle rigidity
B. Myoclonus
C. Hyperreflexia
D. Dilated pupils
Answer: A
Conceptual Explanation: NMS is characterized by lead-pipe rigidity and bradyreflexia,
whereas Serotonin Syndrome features hyperreflexia, myoclonus, and midriasis (dilated
pupils).
