CORE CURRICULUM & PATHOPHYSIOLOGY FOCUS | VERIFIED ANSWERS &
RATIONALES | 75 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
INSTRUCTIONS:
This exam contains 75 multiple-choice questions focused on Advanced Pathophysiology for PMHNPs
Select the best answer for each question
Answers and rationales are provided after each question
Time suggested: 90 minutes
Q1. The dopamine hypothesis of schizophrenia proposes that positive symptoms are caused by:
A) Hypodopaminergia in the mesocortical pathway
B) Hyperdopaminergia in the mesolimbic pathway
C) Hypodopaminergia in the nigrostriatal pathway
D) Hyperdopaminergia in the tuberoinfundibular pathway
Answer: B
Rationale: Positive symptoms (hallucinations, delusions) are associated with hyperdopaminergia in the
mesolimbic pathway (nucleus accumbens). Negative symptoms are associated with hypodopaminergia in the
mesocortical pathway (prefrontal cortex).
Q2. The glutamate hypothesis of schizophrenia suggests that hypofunction of which receptor contributes to
pathophysiology?
A) AMPA
B) Kainate
, ADVANCED PATHOPHYSIOLOGY EXAM ACTUAL EXAM 2026/2027 | PMHNP
CORE CURRICULUM & PATHOPHYSIOLOGY FOCUS | VERIFIED ANSWERS &
RATIONALES | 75 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
C) NMDA
D) Metabotropic
Answer: C
Rationale: NMDA receptor hypofunction (especially on GABAergic interneurons) is proposed to lead to
disinhibition of glutamate release, contributing to both positive and negative symptoms.
Q3. Which of the following is a pathognomonic histopathological finding in Alzheimer's disease?
A) Lewy bodies
B) Neurofibrillary tangles (tau) and amyloid plaques
C) Neuritic plaques only
D) TDP-43 inclusions
Answer: B
Rationale: Alzheimer's disease is characterized by extracellular beta-amyloid plaques and intracellular tau
neurofibrillary tangles. Lewy bodies are found in Parkinson's disease and dementia with Lewy bodies.
Q4. The primary neurodegenerative change in Parkinson's disease is loss of dopaminergic neurons in the:
A) Ventral tegmental area (VTA)
B) Substantia nigra pars compacta
C) Nucleus accumbens
D) Caudate nucleus
, ADVANCED PATHOPHYSIOLOGY EXAM ACTUAL EXAM 2026/2027 | PMHNP
CORE CURRICULUM & PATHOPHYSIOLOGY FOCUS | VERIFIED ANSWERS &
RATIONALES | 75 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
Answer: B
Rationale: Parkinson's disease is characterized by loss of dopaminergic neurons in the substantia nigra pars
compacta, leading to dopamine depletion in the striatum (nigrostriatal pathway).
Q5. The pathophysiology of major depressive disorder is associated with decreased levels of which
neurotrophic factor?
A) NGF
B) GDNF
C) BDNF
D) NT-3
Answer: C
Rationale: Brain-derived neurotrophic factor (BDNF) is decreased in depression, and antidepressants increase
BDNF and promote hippocampal neurogenesis.
Q6. The amygdala is hyperactive in which of the following disorders?
A) Major depressive disorder
B) Anxiety disorders and PTSD
C) Schizophrenia
D) ADHD
Answer: B
, ADVANCED PATHOPHYSIOLOGY EXAM ACTUAL EXAM 2026/2027 | PMHNP
CORE CURRICULUM & PATHOPHYSIOLOGY FOCUS | VERIFIED ANSWERS &
RATIONALES | 75 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
Rationale: The amygdala is hyperactive in anxiety disorders and PTSD, leading to exaggerated fear response
and threat detection.
Q7. In PTSD, the hippocampus is typically:
A) Enlarged
B) Atrophied (smaller volume)
C) Normal
D) Calcified
Answer: B
Rationale: Chronic stress and elevated cortisol lead to hippocampal atrophy (reduced volume) in PTSD,
contributing to memory and context processing deficits.
Q8. The HPA axis is dysregulated in depression. Which of the following is a common finding?
A) Decreased cortisol
B) Hypercortisolemia and dexamethasone non-suppression
C) Decreased CRH
D) Increased DHEA
Answer: B
Rationale: Depression is associated with HPA axis hyperactivity: elevated cortisol and failure to suppress
cortisol after dexamethasone (dexamethasone non-suppression test).