NR566 Advanced Pharmacology
Midterm & Final Exams Bundle
2024/2025 – Actual Exam Questions
with 100% Verified Answers |
Chamberlain | Grade A
Midterm Exam Questions (1–100)
1. Which medication is most appropriate for initial treatment of mild hypertension in
a patient with no comorbidities?
A) Atenolol
B) Lisinopril
C) Hydrochlorothiazide
D) Amlodipine
C) Hydrochlorothiazide
Rationale: Hydrochlorothiazide, a thiazide diuretic, is recommended as first-line therapy
for mild hypertension in patients without comorbidities per JNC-8 guidelines, due to its
efficacy and low side effect profile. Atenolol (A) is a beta-blocker, lisinopril (B) is an
ACE inhibitor, and amlodipine (D) is a calcium channel blocker, typically used in
specific populations or as add-on therapy.
2. What is the mechanism of action of metformin in type 2 diabetes management?
A) Increases insulin secretion
B) Decreases hepatic glucose production
C) Blocks glucose absorption in the gut
D) Enhances peripheral glucose uptake
B) Decreases hepatic glucose production
Rationale: Metformin primarily reduces hepatic gluconeogenesis, lowering blood
glucose levels. It does not increase insulin secretion (A), block gut absorption (C), or
primarily enhance peripheral uptake (D).
3. A patient is prescribed warfarin. Which laboratory value should be monitored to
assess therapeutic effect?
A) Platelet count
B) INR
C) aPTT
D) Hemoglobin
B) INR
Rationale: Warfarin’s anticoagulant effect is monitored using the International
Normalized Ratio (INR), targeting 2.0–3.0 for most indications. Platelet count (A), aPTT
(C), and hemoglobin (D) are not specific to warfarin’s action.
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4. Which antibiotic is contraindicated in patients with a history of anaphylaxis to
penicillin?
A) Azithromycin
B) Amoxicillin
C) Doxycycline
D) Levofloxacin
B) Amoxicillin
Rationale: Amoxicillin is a penicillin derivative and contraindicated in patients with
penicillin anaphylaxis due to risk of cross-reactivity. Azithromycin (A), doxycycline (C),
and levofloxacin (D) are non-penicillin antibiotics and safer alternatives.
5. What is the primary side effect of concern with long-term use of proton pump
inhibitors (PPIs)?
A) Hypertension
B) Osteoporosis
C) Hyperglycemia
D) Weight loss
B) Osteoporosis
Rationale: Long-term PPI use reduces calcium absorption, increasing the risk of
osteoporosis and fractures. Hypertension (A), hyperglycemia (C), and weight loss (D) are
not primary concerns.
6. Which medication is first-line for acute management of generalized tonic-clonic
seizures?
A) Phenytoin
B) Levetiracetam
C) Lorazepam
D) Valproic acid
C) Lorazepam
Rationale: Lorazepam, a benzodiazepine, is first-line for acute seizure management due
to its rapid onset and efficacy in status epilepticus. Phenytoin (A), levetiracetam (B), and
valproic acid (D) are used for long-term control.
7. A patient with type 2 diabetes is prescribed sitagliptin. What is its mechanism of
action?
A) Inhibits DPP-4 enzyme
B) Stimulates insulin release
C) Blocks sodium channels
D) Increases glucagon secretion
A) Inhibits DPP-4 enzyme
Rationale: Sitagliptin is a DPP-4 inhibitor, increasing incretin levels to enhance insulin
release and reduce glucagon. It does not stimulate insulin directly (B), block sodium
channels (C), or increase glucagon (D).
8. Which class of antidepressants is most likely to cause sexual dysfunction?
A) SSRIs
B) MAOIs
C) SNRIs
D) TCAs
A) SSRIs
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Rationale: Selective serotonin reuptake inhibitors (SSRIs) commonly cause sexual
dysfunction due to serotonin receptor effects. MAOIs (B), SNRIs (C), and TCAs (D)
have lower rates of this side effect.
9. What is the black box warning for carbamazepine?
A) Hepatotoxicity
B) Risk of aplastic anemia
C) QT prolongation
D) Serotonin syndrome
B) Risk of aplastic anemia
Rationale: Carbamazepine carries a black box warning for aplastic anemia and
agranulocytosis due to bone marrow suppression. Hepatotoxicity (A), QT prolongation
(C), and serotonin syndrome (D) are not primary concerns.
10. Which medication is used to reverse opioid overdose?
A) Flumazenil
B) Naloxone
C) N-acetylcysteine
D) Atropine
B) Naloxone
Rationale: Naloxone is an opioid antagonist used to reverse opioid overdose by
displacing opioids from mu receptors. Flumazenil (A) reverses benzodiazepines, N-
acetylcysteine (C) treats acetaminophen overdose, and atropine (D) counters cholinergic
toxicity.
11. A patient is prescribed atorvastatin. Which laboratory value should be monitored
regularly?
A) Serum creatinine
B) Liver function tests
C) Blood glucose
D) INR
B) Liver function tests
Rationale: Atorvastatin, a statin, can cause hepatotoxicity, requiring regular monitoring
of liver function tests. Creatinine (A), glucose (C), and INR (D) are not primarily
affected.
12. What is the mechanism of action of albuterol in asthma management?
A) Inhibits histamine release
B) Stimulates beta-2 receptors
C) Blocks leukotriene production
D) Reduces mucus secretion
B) Stimulates beta-2 receptors
Rationale: Albuterol is a short-acting beta-2 agonist, causing bronchodilation by
stimulating beta-2 receptors in airway smooth muscle. It does not inhibit histamine (A),
block leukotrienes (C), or reduce mucus (D).
13. Which medication is contraindicated in patients with a sulfa allergy?
A) Metformin
B) Furosemide
C) Lisinopril
D) Metoprolol
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B) Furosemide
Rationale: Furosemide, a loop diuretic, contains a sulfa moiety and is contraindicated in
patients with sulfa allergies. Metformin (A), lisinopril (C), and metoprolol (D) are not
sulfa-based.
14. What is the primary adverse effect of long-term corticosteroid use?
A) Hypoglycemia
B) Osteoporosis
C) Hypotension
D) Weight loss
B) Osteoporosis
Rationale: Long-term corticosteroids reduce bone density, increasing osteoporosis risk.
They cause hyperglycemia (A), hypertension (C), and weight gain (D), not the opposites.
15. A patient with gout is prescribed allopurinol. What is its mechanism of action?
A) Increases uric acid excretion
B) Inhibits xanthine oxidase
C) Reduces inflammation
D) Blocks purine synthesis
B) Inhibits xanthine oxidase
Rationale: Allopurinol inhibits xanthine oxidase, reducing uric acid production. It does
not increase excretion (A), reduce inflammation (C), or block purine synthesis (D).
16. Which medication is first-line for bipolar disorder maintenance?
A) Fluoxetine
B) Lithium
C) Haloperidol
D) Diazepam
B) Lithium
Rationale: Lithium is a first-line mood stabilizer for bipolar disorder maintenance due to
its efficacy in preventing manic episodes. Fluoxetine (A) is an antidepressant, haloperidol
(C) is an antipsychotic, and diazepam (D) is a benzodiazepine.
17. What is the primary monitoring parameter for digoxin therapy?
A) Serum potassium
B) Blood pressure
C) INR
D) Serum creatinine
A) Serum potassium
Rationale: Digoxin toxicity is potentiated by hypokalemia, making serum potassium
monitoring critical. Blood pressure (B), INR (C), and creatinine (D) are less directly
related to digoxin.
18. Which antibiotic is most appropriate for community-acquired pneumonia in a
patient with no comorbidities?
A) Amoxicillin
B) Vancomycin
C) Ceftriaxone
D) Azithromycin
D) Azithromycin
Rationale: Azithromycin, a macrolide, is first-line for outpatient treatment of