SUD & Personality Disorders | Q&A | Grade A | 100% Correct (Verified
Answers) – Champion Nursing Program
Subject: Psychiatric-Mental Health Nurse Practitioner (PMHNP) – Major Depressive Disorder, Bipolar
Spectrum, Dementia, Substance Use Disorders, Personality Disorders
Source: NR 547 Final Exam Bank / DSM-5-TR / Clinical Guidelines (2026/2027 Update)
Format: Q&A Guide with Clinical Rationales | Grade A Guaranteed
1: What is the recommended treatment for mild depression in postpartum women?
Correct Answer: Psychotherapy such as cognitive-behavioral therapy (CBT) OR interpersonal therapy
1. For mild postpartum depression, non-pharmacologic interventions are first-line due to lower
risk to infant and mother. CBT and interpersonal therapy have strong evidence for efficacy.
2. Antidepressants are reserved for moderate-severe cases or when therapy alone is insufficient.
Psychotherapy addresses adjustment to motherhood, role transitions, and negative thought
patterns.
3. Medication is not first-line for mild depression in this population unless psychotherapy is
refused or unavailable.
2: What is the recommended treatment for mild depression in postpartum women who are
breastfeeding?
Correct Answer: Psychotherapy with or without antidepressant (sertraline or paroxetine)
1. Sertraline and paroxetine have the most lactation safety data with low infant exposure levels.
Psychotherapy remains foundational, but pharmacotherapy may be added based on severity and
patient preference.
2. The decision to add medication balances maternal mental health (critical for infant bonding)
against minimal medication risks.
3. Fluoxetine has a longer half-life and higher infant levels, making it less preferred in
breastfeeding.
3: What is the recommended treatment for severe depression in postpartum women?
Correct Answer: Psychotherapy AND fluoxetine. Alternative medications: sertraline or tricyclic
antidepressant.
1. Severe depression requires combination therapy (medication + psychotherapy) for optimal
outcomes. Fluoxetine has established efficacy in severe depression and is first-line.
2. TCAs are effective alternatives but have more side effects and require monitoring. Rapid
symptom reduction is critical to prevent harm to mother and infant.
3. Hospitalization may be needed if suicidal ideation or psychosis is present.
, 4: What is the recommended treatment for severe depression in postpartum women while
breastfeeding?
Correct Answer: Supportive services AND sertraline. Alternative medication: Paroxetine.
1. Sertraline is preferred in breastfeeding due to minimal excretion into breast milk. Supportive
services include lactation consultation, peer support, and case management.
2. Paroxetine is an alternative but has higher transfer into milk than sertraline. Severe depression
requires aggressive treatment to prevent adverse maternal and infant outcomes.
5: What is the mechanism of action of Selective Serotonin Reuptake Inhibitors (SSRIs)?
Correct Answer: Inhibit 5-HT reuptake
1. SSRIs block the serotonin transporter (SERT), increasing synaptic serotonin availability, which
enhances serotonergic neurotransmission and improves mood.
2. This mechanism underlies their efficacy in depression, anxiety, and OCD. Onset of therapeutic
effect typically takes 2-4 weeks due to downstream adaptations.
6: What is the mechanism of action of Serotonin Norepinephrine Reuptake Inhibitors (SNRIs)?
Correct Answer: Inhibit 5-HT reuptake, inhibit NE reuptake (↑ energy, focus), increase DA in
prefrontal cortex (↑ cognition)
1. SNRIs block both SERT and NET, increasing serotonin and norepinephrine. This dual action
may provide advantages for fatigue, concentration, and pain symptoms.
2. Dopamine increase in PFC occurs indirectly via NE modulation. Common SNRIs: venlafaxine,
duloxetine, desvenlafaxine.
7: What is the mechanism of action of Norepinephrine Dopamine Reuptake Inhibitors (NDRI)?
Correct Answer: Inhibit DA reuptake (↑alertness, motivation); inhibit NE reuptake (↑energy)
1. Bupropion is the primary NDRI. It increases dopamine and norepinephrine without direct
serotonin effects, making it activating and weight-neutral.
2. Contraindicated in seizure disorders and eating disorders due to seizure threshold lowering.
8: What is a prescribing pearl for Escitalopram (Lexapro)?
Correct Answer: No known drug interactions
1. Escitalopram has minimal CYP450 inhibition, making it a preferred choice when
polypharmacy is anticipated or in medically complex patients.
2. It is the S-enantiomer of citalopram with better tolerability and fewer QT prolongation
concerns.
9: What is a prescribing pearl for Citalopram (Celexa)?
Correct Answer: Mild antihistamine effects
1. Citalopram has weak H1 blockade, which may cause mild sedation. It is generally well
tolerated but dose-related QT prolongation limits maximum dose to 40 mg/day (20 mg/day for
>60 years).