NSG 6020 3P Advanced Health Assessment,
Pathophysiology & Pharmacology | South
University NSG 6020 3P Study Guide & Exam Prep
2026/2027 | Advanced Health Assessment, Physical
Examination, Pathophysiology, Pharmacology,
Diagnostic Reasoning, Differential Diagnosis,
Clinical Decision-Making, Primary Care
Management, SOAP Documentation, APEA 3P
Review, Practice Questions, Answers & Detailed
Rationales
Question 1: A 72-year-old male with a 45-pack-year smoking history presents
with a new onset of hoarseness and a chronic cough. Upon visualization of the
vocal cords, a unilateral, fixed vocal cord is noted. Which of the following is
the most likely anatomical structure to be implicated in this patient's
presentation?
A. Recurrent laryngeal nerve
B. Vagus nerve
C. Hypoglossal nerve
D. Phrenic nerve
CORRECT ANSWER: A. Recurrent laryngeal nerve
Rationale: The recurrent laryngeal nerve, a branch of the vagus nerve, provides motor
innervation to all intrinsic muscles of the larynx except the cricothyroid. Unilateral
damage results in ipsilateral vocal cord paralysis, leading to hoarseness. In this patient
with a significant smoking history, the most common cause is a malignancy (e.g., lung
cancer) compressing the left recurrent laryngeal nerve as it loops around the aortic arch.
Question 2: A 55-year-old female with a history of rheumatoid arthritis
presents with a sudden onset of severe, stabbing pain in her right eye,
accompanied by blurred vision and a unilateral headache. On examination,
you note a fixed, mid-position pupil and injection of the conjunctiva. Which of
the following is the most appropriate initial diagnostic step?
A. Magnetic resonance imaging (MRI) of the brain
B. Slit-lamp examination
C. Non-contrast computed tomography (CT) of the head
D. Fundoscopic examination
CORRECT ANSWER: B. Slit-lamp examination
Rationale: The patient's presentation of severe eye pain, headache, blurred vision, and a
fixed mid-position pupil is classic for acute angle-closure glaucoma. A slit-lamp
examination is the immediate diagnostic test to assess the anterior chamber depth and
,measure intraocular pressure, which is typically elevated. While fundoscopy may
visualize the optic disc, it does not assess the anterior chamber angle, which is crucial
for diagnosis.
Question 3: A 45-year-old male presents with a painful, swollen, and
erythematous left great toe. He reports that the pain started suddenly last
night and is so severe that he cannot bear the weight of a bedsheet on it. He
has a history of hypertension and is taking hydrochlorothiazide. Which of the
following pathophysiological processes is most directly responsible for this
patient's symptoms?
A. Autosomal dominant mutation in the SLC2A9 gene
B. Deposition of monosodium urate crystals in the joint
C. Accumulation of calcium pyrophosphate dihydrate crystals
D. Immunoglobulin A (IgA) immune complex deposition
CORRECT ANSWER: B. Deposition of monosodium urate crystals in the joint
Rationale: The presentation of acute, severe podagra (great toe pain) with erythema and
swelling in a patient on a thiazide diuretic is highly suggestive of acute gout. The
underlying pathophysiology is the precipitation of monosodium urate crystals in the
joint space, leading to an intense inflammatory response. Thiazide diuretics can increase
serum uric acid levels, predisposing patients to gouty attacks.
Question 4: A 62-year-old male with a history of coronary artery disease is
prescribed a new medication for his angina. He reports to his provider that he
is experiencing a severe, persistent headache and flushing. Which of the
following medications is most likely responsible for these adverse effects?
A. Atenolol
B. Diltiazem
C. Nitroglycerin
D. Ranolazine
CORRECT ANSWER: C. Nitroglycerin
Rationale: Nitroglycerin is a potent vasodilator that works by releasing nitric oxide,
leading to vascular smooth muscle relaxation. Its most common side effects are
headaches and facial flushing, which are a direct result of vasodilation in the cerebral
and cutaneous vasculature. Beta-blockers (Atenolol), calcium channel blockers
(Diltiazem), and ranolazine are less likely to cause this specific profile of side effects.
Question 5: A 3-year-old child presents to the clinic with a fever, a "barking"
cough, and hoarseness. The child's parent reports that the symptoms are
,worse at night. On examination, the child is afebrile but has mild stridor at
rest. What is the most likely pathophysiological cause of this child's
symptoms?
A. Supraglottic inflammation caused by Haemophilus influenzae type B
B. Subglottic edema causing airway narrowing
C. Epiglottitis with cherry-red swelling
D. Retropharyngeal abscess formation
CORRECT ANSWER: B. Subglottic edema causing airway narrowing
Rationale: This child's presentation is classic for viral croup (laryngotracheobronchitis).
The pathophysiological hallmark is inflammation and edema of the subglottic larynx,
which is the narrowest part of the pediatric airway. This leads to the characteristic
"barking" cough, hoarseness, and stridor. Epiglottitis (A) is a more severe, acute
presentation with drooling and a high fever, now rare due to the HiB vaccine.
Question 6: A 48-year-old female with a history of systemic lupus
erythematosus (SLE) presents with a chief complaint of chest pain that is
sharp and worsens with inspiration. She is lying in bed, unable to find a
comfortable position. An electrocardiogram (ECG) shows diffuse ST-segment
elevation. Which of the following is the most likely diagnosis?
A. Acute myocardial infarction
B. Pericarditis
C. Pulmonary embolism
D. Costochondritis
CORRECT ANSWER: B. Pericarditis
Rationale: Lupus is a common cause of serositis, including pericarditis. The presentation
of sharp, pleuritic chest pain that is worse with inspiration and relieved by leaning
forward, along with diffuse ST-segment elevation on ECG (without reciprocal changes),
is classic for pericarditis. Myocardial infarction typically has localized ST changes with
reciprocal depressions.
Question 7: A 70-year-old male is brought to the emergency department by his
family for acute confusion. His family reports that he has been having
difficulty urinating for the past few days. His vital signs are: temperature
38.9°C, heart rate 110 bpm, blood pressure 95/60 mmHg. On digital rectal
exam, the prostate is enlarged and tender. Which of the following is the most
likely pathogen responsible for this patient's condition?
A. Pseudomonas aeruginosa
B. Escherichia coli
, C. Chlamydia trachomatis
D. Enterococcus faecalis
CORRECT ANSWER: B. Escherichia coli
Rationale: Acute bacterial prostatitis typically presents with fever, chills, urinary
symptoms, and a tender, swollen prostate. In older men, the most common infecting
organism is Escherichia coli, similar to urinary tract infections. The patient's symptoms
of confusion and hypotension indicate a possible urosepsis, requiring prompt treatment.
Question 8: A 25-year-old female presents with a 2-week history of a pruritic,
erythematous rash on her elbows, knees, and scalp. The lesions are well-
demarcated, have a silvery scale, and when scraped, pinpoint bleeding spots
appear. This patient is at an increased risk for developing which of the
following comorbid conditions?
A. Inflammatory bowel disease
B. Systemic lupus erythematosus
C. Diabetes mellitus type 2
D. Psoriatic arthritis
CORRECT ANSWER: D. Psoriatic arthritis
Rationale: The patient's presentation of well-demarcated, scaly plaques with Auspitz's
sign (pinpoint bleeding after scale removal) is classic for psoriasis. Up to 30% of patients
with psoriasis develop psoriatic arthritis, an inflammatory arthropathy. This is the most
significant and common comorbid condition directly linked to the pathophysiology of
this skin disorder.
Question 9: A 52-year-old male with a history of chronic alcoholism presents
with a 3-day history of confusion, tremors, and difficulty walking. On
examination, he has nystagmus, ataxia, and ophthalmoplegia. He is confused
and disoriented to time and place. Which of the following is the most
important immediate pharmacologic treatment for this patient?
A. Thiamine (Vitamin B1)
B. Naloxone
C. Haloperidol
D. Lorazepam
CORRECT ANSWER: A. Thiamine (Vitamin B1)
Rationale: This patient's presentation of ophthalmoplegia, ataxia, and confusion is the
classic triad of Wernicke's encephalopathy, a neurological emergency caused by acute
thiamine deficiency, often seen in chronic alcoholics. Immediate administration of
thiamine is critical to prevent progression to Korsakoff's syndrome and potential
Pathophysiology & Pharmacology | South
University NSG 6020 3P Study Guide & Exam Prep
2026/2027 | Advanced Health Assessment, Physical
Examination, Pathophysiology, Pharmacology,
Diagnostic Reasoning, Differential Diagnosis,
Clinical Decision-Making, Primary Care
Management, SOAP Documentation, APEA 3P
Review, Practice Questions, Answers & Detailed
Rationales
Question 1: A 72-year-old male with a 45-pack-year smoking history presents
with a new onset of hoarseness and a chronic cough. Upon visualization of the
vocal cords, a unilateral, fixed vocal cord is noted. Which of the following is
the most likely anatomical structure to be implicated in this patient's
presentation?
A. Recurrent laryngeal nerve
B. Vagus nerve
C. Hypoglossal nerve
D. Phrenic nerve
CORRECT ANSWER: A. Recurrent laryngeal nerve
Rationale: The recurrent laryngeal nerve, a branch of the vagus nerve, provides motor
innervation to all intrinsic muscles of the larynx except the cricothyroid. Unilateral
damage results in ipsilateral vocal cord paralysis, leading to hoarseness. In this patient
with a significant smoking history, the most common cause is a malignancy (e.g., lung
cancer) compressing the left recurrent laryngeal nerve as it loops around the aortic arch.
Question 2: A 55-year-old female with a history of rheumatoid arthritis
presents with a sudden onset of severe, stabbing pain in her right eye,
accompanied by blurred vision and a unilateral headache. On examination,
you note a fixed, mid-position pupil and injection of the conjunctiva. Which of
the following is the most appropriate initial diagnostic step?
A. Magnetic resonance imaging (MRI) of the brain
B. Slit-lamp examination
C. Non-contrast computed tomography (CT) of the head
D. Fundoscopic examination
CORRECT ANSWER: B. Slit-lamp examination
Rationale: The patient's presentation of severe eye pain, headache, blurred vision, and a
fixed mid-position pupil is classic for acute angle-closure glaucoma. A slit-lamp
examination is the immediate diagnostic test to assess the anterior chamber depth and
,measure intraocular pressure, which is typically elevated. While fundoscopy may
visualize the optic disc, it does not assess the anterior chamber angle, which is crucial
for diagnosis.
Question 3: A 45-year-old male presents with a painful, swollen, and
erythematous left great toe. He reports that the pain started suddenly last
night and is so severe that he cannot bear the weight of a bedsheet on it. He
has a history of hypertension and is taking hydrochlorothiazide. Which of the
following pathophysiological processes is most directly responsible for this
patient's symptoms?
A. Autosomal dominant mutation in the SLC2A9 gene
B. Deposition of monosodium urate crystals in the joint
C. Accumulation of calcium pyrophosphate dihydrate crystals
D. Immunoglobulin A (IgA) immune complex deposition
CORRECT ANSWER: B. Deposition of monosodium urate crystals in the joint
Rationale: The presentation of acute, severe podagra (great toe pain) with erythema and
swelling in a patient on a thiazide diuretic is highly suggestive of acute gout. The
underlying pathophysiology is the precipitation of monosodium urate crystals in the
joint space, leading to an intense inflammatory response. Thiazide diuretics can increase
serum uric acid levels, predisposing patients to gouty attacks.
Question 4: A 62-year-old male with a history of coronary artery disease is
prescribed a new medication for his angina. He reports to his provider that he
is experiencing a severe, persistent headache and flushing. Which of the
following medications is most likely responsible for these adverse effects?
A. Atenolol
B. Diltiazem
C. Nitroglycerin
D. Ranolazine
CORRECT ANSWER: C. Nitroglycerin
Rationale: Nitroglycerin is a potent vasodilator that works by releasing nitric oxide,
leading to vascular smooth muscle relaxation. Its most common side effects are
headaches and facial flushing, which are a direct result of vasodilation in the cerebral
and cutaneous vasculature. Beta-blockers (Atenolol), calcium channel blockers
(Diltiazem), and ranolazine are less likely to cause this specific profile of side effects.
Question 5: A 3-year-old child presents to the clinic with a fever, a "barking"
cough, and hoarseness. The child's parent reports that the symptoms are
,worse at night. On examination, the child is afebrile but has mild stridor at
rest. What is the most likely pathophysiological cause of this child's
symptoms?
A. Supraglottic inflammation caused by Haemophilus influenzae type B
B. Subglottic edema causing airway narrowing
C. Epiglottitis with cherry-red swelling
D. Retropharyngeal abscess formation
CORRECT ANSWER: B. Subglottic edema causing airway narrowing
Rationale: This child's presentation is classic for viral croup (laryngotracheobronchitis).
The pathophysiological hallmark is inflammation and edema of the subglottic larynx,
which is the narrowest part of the pediatric airway. This leads to the characteristic
"barking" cough, hoarseness, and stridor. Epiglottitis (A) is a more severe, acute
presentation with drooling and a high fever, now rare due to the HiB vaccine.
Question 6: A 48-year-old female with a history of systemic lupus
erythematosus (SLE) presents with a chief complaint of chest pain that is
sharp and worsens with inspiration. She is lying in bed, unable to find a
comfortable position. An electrocardiogram (ECG) shows diffuse ST-segment
elevation. Which of the following is the most likely diagnosis?
A. Acute myocardial infarction
B. Pericarditis
C. Pulmonary embolism
D. Costochondritis
CORRECT ANSWER: B. Pericarditis
Rationale: Lupus is a common cause of serositis, including pericarditis. The presentation
of sharp, pleuritic chest pain that is worse with inspiration and relieved by leaning
forward, along with diffuse ST-segment elevation on ECG (without reciprocal changes),
is classic for pericarditis. Myocardial infarction typically has localized ST changes with
reciprocal depressions.
Question 7: A 70-year-old male is brought to the emergency department by his
family for acute confusion. His family reports that he has been having
difficulty urinating for the past few days. His vital signs are: temperature
38.9°C, heart rate 110 bpm, blood pressure 95/60 mmHg. On digital rectal
exam, the prostate is enlarged and tender. Which of the following is the most
likely pathogen responsible for this patient's condition?
A. Pseudomonas aeruginosa
B. Escherichia coli
, C. Chlamydia trachomatis
D. Enterococcus faecalis
CORRECT ANSWER: B. Escherichia coli
Rationale: Acute bacterial prostatitis typically presents with fever, chills, urinary
symptoms, and a tender, swollen prostate. In older men, the most common infecting
organism is Escherichia coli, similar to urinary tract infections. The patient's symptoms
of confusion and hypotension indicate a possible urosepsis, requiring prompt treatment.
Question 8: A 25-year-old female presents with a 2-week history of a pruritic,
erythematous rash on her elbows, knees, and scalp. The lesions are well-
demarcated, have a silvery scale, and when scraped, pinpoint bleeding spots
appear. This patient is at an increased risk for developing which of the
following comorbid conditions?
A. Inflammatory bowel disease
B. Systemic lupus erythematosus
C. Diabetes mellitus type 2
D. Psoriatic arthritis
CORRECT ANSWER: D. Psoriatic arthritis
Rationale: The patient's presentation of well-demarcated, scaly plaques with Auspitz's
sign (pinpoint bleeding after scale removal) is classic for psoriasis. Up to 30% of patients
with psoriasis develop psoriatic arthritis, an inflammatory arthropathy. This is the most
significant and common comorbid condition directly linked to the pathophysiology of
this skin disorder.
Question 9: A 52-year-old male with a history of chronic alcoholism presents
with a 3-day history of confusion, tremors, and difficulty walking. On
examination, he has nystagmus, ataxia, and ophthalmoplegia. He is confused
and disoriented to time and place. Which of the following is the most
important immediate pharmacologic treatment for this patient?
A. Thiamine (Vitamin B1)
B. Naloxone
C. Haloperidol
D. Lorazepam
CORRECT ANSWER: A. Thiamine (Vitamin B1)
Rationale: This patient's presentation of ophthalmoplegia, ataxia, and confusion is the
classic triad of Wernicke's encephalopathy, a neurological emergency caused by acute
thiamine deficiency, often seen in chronic alcoholics. Immediate administration of
thiamine is critical to prevent progression to Korsakoff's syndrome and potential
