NR 546 MIDTERM EXAM - ADVANCED
PSYCHOPHARMACOLOGY QUESTIONS
AND ANSWERS (LATEST), (A+
GUARANTEE). JUST RELEASED
1. A patient is prescribed Fluoxetine for depression. The nurse practitioner understands that
this medication primarily works by which mechanism?
A. Blocking the serotonin reuptake transporter (SERT)
B. Antagonizing dopamine D2 receptors
C. Inhibiting the reuptake of norepinephrine
D. Increasing the breakdown of GABA in the synapse
Answer: A
Conceptual Explanation: Fluoxetine is a Selective Serotonin Reuptake Inhibitor (SSRI)
that works by inhibiting the SERT, thereby increasing serotonin levels in the synaptic cleft.
2. Which dopamine pathway is associated with the negative symptoms of schizophrenia and
cognitive impairment?
A. Mesolimbic pathway
B. Mesocortical pathway
C. Nigrostriatal pathway
,D. Tuberoinfundibular pathway
Answer: B
Conceptual Explanation: The mesocortical pathway is associated with negative symptoms
and cognitive deficits when dopamine levels are low. The mesolimbic pathway is associated
with positive symptoms when dopamine is high.
3. A patient taking Clozapine must have regular blood draws to monitor which specific
parameter?
A. Liver function tests (LFTs)
B. Thyroid Stimulating Hormone (TSH)
C. Serum creatinine
D. Absolute Neutrophil Count (ANC)
Answer: D
Conceptual Explanation: Clozapine carries a risk of agranulocytosis, requiring strict
monitoring of the Absolute Neutrophil Count (ANC) via the REMS program.
4. A client is started on Lithium for Bipolar I Disorder. What is the therapeutic serum range for
acute mania?
A. 0.1 - 0.5 mEq/L
B. 2.5 - 3.0 mEq/L
C. 1.5 - 2.0 mEq/L
, D. 0.6 - 1.2 mEq/L
Answer: D
Conceptual Explanation: The standard therapeutic range for lithium is generally 0.6 to 1.2
mEq/L. Levels above 1.5 mEq/L are considered toxic.
5. Which enzyme system is most responsible for the metabolism of the majority of
psychotropic medications?
A. Catechol-O-methyltransferase
B. Monoamine oxidase
C. Acetylcholinesterase
D. CYP450
Answer: D
Conceptual Explanation: The Cytochrome P450 (CYP450) enzyme system in the liver is
the primary pathway for the metabolism of most psychotropic drugs.
6. Benzodiazepines act as positive allosteric modulators on which receptor?
A. 5-HT1A
B. GABA-B
C. NMDA
D. GABA-A
PSYCHOPHARMACOLOGY QUESTIONS
AND ANSWERS (LATEST), (A+
GUARANTEE). JUST RELEASED
1. A patient is prescribed Fluoxetine for depression. The nurse practitioner understands that
this medication primarily works by which mechanism?
A. Blocking the serotonin reuptake transporter (SERT)
B. Antagonizing dopamine D2 receptors
C. Inhibiting the reuptake of norepinephrine
D. Increasing the breakdown of GABA in the synapse
Answer: A
Conceptual Explanation: Fluoxetine is a Selective Serotonin Reuptake Inhibitor (SSRI)
that works by inhibiting the SERT, thereby increasing serotonin levels in the synaptic cleft.
2. Which dopamine pathway is associated with the negative symptoms of schizophrenia and
cognitive impairment?
A. Mesolimbic pathway
B. Mesocortical pathway
C. Nigrostriatal pathway
,D. Tuberoinfundibular pathway
Answer: B
Conceptual Explanation: The mesocortical pathway is associated with negative symptoms
and cognitive deficits when dopamine levels are low. The mesolimbic pathway is associated
with positive symptoms when dopamine is high.
3. A patient taking Clozapine must have regular blood draws to monitor which specific
parameter?
A. Liver function tests (LFTs)
B. Thyroid Stimulating Hormone (TSH)
C. Serum creatinine
D. Absolute Neutrophil Count (ANC)
Answer: D
Conceptual Explanation: Clozapine carries a risk of agranulocytosis, requiring strict
monitoring of the Absolute Neutrophil Count (ANC) via the REMS program.
4. A client is started on Lithium for Bipolar I Disorder. What is the therapeutic serum range for
acute mania?
A. 0.1 - 0.5 mEq/L
B. 2.5 - 3.0 mEq/L
C. 1.5 - 2.0 mEq/L
, D. 0.6 - 1.2 mEq/L
Answer: D
Conceptual Explanation: The standard therapeutic range for lithium is generally 0.6 to 1.2
mEq/L. Levels above 1.5 mEq/L are considered toxic.
5. Which enzyme system is most responsible for the metabolism of the majority of
psychotropic medications?
A. Catechol-O-methyltransferase
B. Monoamine oxidase
C. Acetylcholinesterase
D. CYP450
Answer: D
Conceptual Explanation: The Cytochrome P450 (CYP450) enzyme system in the liver is
the primary pathway for the metabolism of most psychotropic drugs.
6. Benzodiazepines act as positive allosteric modulators on which receptor?
A. 5-HT1A
B. GABA-B
C. NMDA
D. GABA-A
