PMHNP CERTIFICATION EXAM
2026/2027 QUESTIONS AND ANSWERS
1. A 34-year-old male with treatment-resistant schizophrenia is started on Clozapine. Which
laboratory value requires immediate discontinuation of the medication and consultation with
a hematologist?
A. Absolute Neutrophil Count (ANC) of 1,200/mm³
B. Absolute Neutrophil Count (ANC) of 450/mm³
C. White Blood Cell (WBC) count of 4,000/mm³
D. Platelet count of 150,000/mm³
Answer: B
Conceptual Explanation: According to the Clozapine REMS program, an ANC less than
500/mm³ is classified as severe neutropenia and requires immediate cessation of the drug.
2. Which dopamine pathway is primarily associated with the negative symptoms of
schizophrenia, such as apathy and social withdrawal?
A. Mesolimbic pathway
B. Mesocortical pathway
,C. Nigrostriatal pathway
D. Tuberoinfundibular pathway
Answer: B
Conceptual Explanation: The mesocortical pathway is hypothesized to be in a state of
hypodopaminergic activity in schizophrenia, leading to negative symptoms and cognitive
deficits.
3. A patient taking Phenelzine (an MAOI) presents to the emergency department with a
severe headache, palpitations, and a blood pressure of 210/120 mmHg. Which dietary
indiscretion most likely caused this?
A. Eating fresh salmon
B. Consuming white bread
C. Eating a bowl of cottage cheese
D. Drinking a glass of aged red wine
Answer: D
Conceptual Explanation: Aged red wine contains high levels of tyramine, which can
trigger a hypertensive crisis when combined with Monoamine Oxidase Inhibitors (MAOIs).
4. A PMHNP is treating a pregnant woman for bipolar disorder. Which medication is most
strongly associated with the development of Ebstein’s anomaly in the fetus?
A. Valproate
, B. Lithium
C. Lamotrigine
D. Quetiapine
Answer: B
Conceptual Explanation: Lithium exposure during the first trimester is specifically
associated with Ebstein’s anomaly, a rare cardiac defect.
5. Which neurotransmitter is the primary inhibitory neurotransmitter in the central nervous
system?
A. Glutamate
B. GABA
C. Norepinephrine
D. Acetylcholine
Answer: B
Conceptual Explanation: Gamma-aminobutyric acid (GABA) is the major inhibitory
neurotransmitter, while Glutamate is the major excitatory one.
6. In the context of the HPA axis, which hormone is released by the hypothalamus in response
to stress to stimulate the pituitary gland?
A. Cortisol
B. Adrenocorticotropic hormone (ACTH)
2026/2027 QUESTIONS AND ANSWERS
1. A 34-year-old male with treatment-resistant schizophrenia is started on Clozapine. Which
laboratory value requires immediate discontinuation of the medication and consultation with
a hematologist?
A. Absolute Neutrophil Count (ANC) of 1,200/mm³
B. Absolute Neutrophil Count (ANC) of 450/mm³
C. White Blood Cell (WBC) count of 4,000/mm³
D. Platelet count of 150,000/mm³
Answer: B
Conceptual Explanation: According to the Clozapine REMS program, an ANC less than
500/mm³ is classified as severe neutropenia and requires immediate cessation of the drug.
2. Which dopamine pathway is primarily associated with the negative symptoms of
schizophrenia, such as apathy and social withdrawal?
A. Mesolimbic pathway
B. Mesocortical pathway
,C. Nigrostriatal pathway
D. Tuberoinfundibular pathway
Answer: B
Conceptual Explanation: The mesocortical pathway is hypothesized to be in a state of
hypodopaminergic activity in schizophrenia, leading to negative symptoms and cognitive
deficits.
3. A patient taking Phenelzine (an MAOI) presents to the emergency department with a
severe headache, palpitations, and a blood pressure of 210/120 mmHg. Which dietary
indiscretion most likely caused this?
A. Eating fresh salmon
B. Consuming white bread
C. Eating a bowl of cottage cheese
D. Drinking a glass of aged red wine
Answer: D
Conceptual Explanation: Aged red wine contains high levels of tyramine, which can
trigger a hypertensive crisis when combined with Monoamine Oxidase Inhibitors (MAOIs).
4. A PMHNP is treating a pregnant woman for bipolar disorder. Which medication is most
strongly associated with the development of Ebstein’s anomaly in the fetus?
A. Valproate
, B. Lithium
C. Lamotrigine
D. Quetiapine
Answer: B
Conceptual Explanation: Lithium exposure during the first trimester is specifically
associated with Ebstein’s anomaly, a rare cardiac defect.
5. Which neurotransmitter is the primary inhibitory neurotransmitter in the central nervous
system?
A. Glutamate
B. GABA
C. Norepinephrine
D. Acetylcholine
Answer: B
Conceptual Explanation: Gamma-aminobutyric acid (GABA) is the major inhibitory
neurotransmitter, while Glutamate is the major excitatory one.
6. In the context of the HPA axis, which hormone is released by the hypothalamus in response
to stress to stimulate the pituitary gland?
A. Cortisol
B. Adrenocorticotropic hormone (ACTH)
