ADVANCED PHARMACOLOGY FINAL EXAM LATEST
2026 UPDATE 100 QUESTIONS AND DETAILED
VERIFIED ANSWERS FROM ACTUAL EXAMS TEST
GRADE A+
Question 1
A 72-year-old male with heart failure (HFrEF) is started on sacubitril/valsartan.
Which laboratory parameter requires the most immediate monitoring?
A) Serum sodium
B) Serum creatinine and potassium
C) Hemoglobin
D) Liver transaminases
Correct Answer: B
*Explanation: Sacubitril/valsartan inhibits neprilysin and blocks AT1 receptors. It
can cause hyperkalemia and acute kidney injury, especially in volume-depleted
patients. Monitoring serum creatinine and potassium within 2 weeks of initiation
is mandatory.*
Question 2
A patient on warfarin for atrial fibrillation has an INR of 4.5 without bleeding.
Which management step is most appropriate?
A) Administer vitamin K 10 mg orally
B) Hold warfarin and recheck INR in 24 hours
C) Infuse fresh frozen plasma
D) Give prothrombin complex concentrate
Correct Answer: B
Explanation: For an asymptomatic INR between 4.5 and 10, guidelines recommend
withholding warfarin; vitamin K is generally reserved for higher INRs or bleeding
risk. Routine FFP or PCC is unnecessary without active bleeding.
,Question 3
Which antidepressant is most likely to cause sexual dysfunction as a prominent
adverse effect?
A) Bupropion
B) Mirtazapine
C) Sertraline
D) Vortioxetine
Correct Answer: C
Explanation: Sertraline, an SSRI, frequently causes sexual dysfunction (delayed
ejaculation, anorgasmia) due to serotonin-mediated inhibition of dopamine and
norepinephrine in sexual pathways. Bupropion and mirtazapine have lower rates.
Question 4
A patient with type 2 diabetes on metformin and glipizide presents with
palpitations, sweating, and confusion. Fingerstick glucose is 45 mg/dL. What is the
immediate next step?
A) Administer intramuscular glucagon
B) Give 15 g of oral glucose
C) Start an IV of dextrose 10% infusion
D) Hold glipizide for 24 hours
Correct Answer: B
*Explanation: The patient is conscious (only confusion) so oral glucose 15 g is first-
line for hypoglycemia; repeat glucose in 15 minutes. Glucagon is for unconscious
patients or when IV access is unavailable.*
Question 5
Which drug-class combination is contraindicated in a patient with a history of
angioedema related to lisinopril?
A) Losartan and hydrochlorothiazide
B) Amlodipine and metoprolol
C) Furosemide and spironolactone
D) Hydralazine and isosorbide dinitrate
,Correct Answer: A
Explanation: Losartan is an ARB; cross-reactivity for angioedema with ACE
inhibitors is low but exists. However, the combination of an ARB with a thiazide is
safe but losartan itself is contraindicated if ACE inhibitor angioedema was severe
because ARBs can rarely cause similar reactions.
Question 6
A patient taking rifampin for tuberculosis develops breakthrough vaginal bleeding
while on combined oral contraceptives. What is the primary mechanism?
A) Additive anticoagulant effect
B) CYP3A4 induction reducing estrogen levels
C) Direct uterine irritation
D) Protein binding displacement
Correct Answer: B
Explanation: Rifampin is a potent inducer of CYP3A4, accelerating the metabolism
of ethinyl estradiol and progestins, leading to reduced contraceptive efficacy and
breakthrough bleeding.
Question 7
A 55-year-old with bipolar I disorder on lithium therapy develops nausea, coarse
tremor, and confusion. Serum lithium level is 2.0 mEq/L. Which intervention is
most critical?
A) Increase fluid intake to 3 L/day
B) Administer activated charcoal
C) Hold lithium and assess renal function
D) Add haloperidol for agitation
Correct Answer: C
*Explanation: Symptoms and level 2.0 mEq/L indicate moderate toxicity.
Immediate holding of lithium and monitoring renal function is required;
hemodialysis is not yet indicated. Activated charcoal does not bind lithium.*
Question 8
Which statement best describes the mechanism of action of pimavanserin?
, A) Inverse agonist at 5-HT2A receptors
B) Partial dopamine D2 agonist
C) Nonselective monoamine oxidase inhibitor
D) Muscarinic M1 antagonist
Correct Answer: A
*Explanation: Pimavanserin is a selective 5-HT2A inverse agonist used for
Parkinson’s disease psychosis without blocking dopamine receptors, thus avoiding
worsening of motor symptoms.*
Question 9
A patient with chemotherapy-induced nausea is given aprepitant. This drug
primarily blocks which receptor?
A) NK1
B) 5-HT3
C) D2
D) H1
Correct Answer: A
*Explanation: Aprepitant is a neurokinin-1 (NK1) receptor antagonist, used in
combination with a 5-HT3 antagonist and dexamethasone for delayed CINV.*
Question 10
Which antibiotic is associated with red man syndrome (pruritus, flushing,
hypotension) when infused too rapidly?
A) Ciprofloxacin
B) Vancomycin
C) Doxycycline
D) Azithromycin
Correct Answer: B
Explanation: Vancomycin causes histamine release resulting in red man syndrome.
Slowing the infusion to at least 60 minutes prevents this reaction.
Question 11
A patient on chronic high-dose acetaminophen for osteoarthritis presents with
2026 UPDATE 100 QUESTIONS AND DETAILED
VERIFIED ANSWERS FROM ACTUAL EXAMS TEST
GRADE A+
Question 1
A 72-year-old male with heart failure (HFrEF) is started on sacubitril/valsartan.
Which laboratory parameter requires the most immediate monitoring?
A) Serum sodium
B) Serum creatinine and potassium
C) Hemoglobin
D) Liver transaminases
Correct Answer: B
*Explanation: Sacubitril/valsartan inhibits neprilysin and blocks AT1 receptors. It
can cause hyperkalemia and acute kidney injury, especially in volume-depleted
patients. Monitoring serum creatinine and potassium within 2 weeks of initiation
is mandatory.*
Question 2
A patient on warfarin for atrial fibrillation has an INR of 4.5 without bleeding.
Which management step is most appropriate?
A) Administer vitamin K 10 mg orally
B) Hold warfarin and recheck INR in 24 hours
C) Infuse fresh frozen plasma
D) Give prothrombin complex concentrate
Correct Answer: B
Explanation: For an asymptomatic INR between 4.5 and 10, guidelines recommend
withholding warfarin; vitamin K is generally reserved for higher INRs or bleeding
risk. Routine FFP or PCC is unnecessary without active bleeding.
,Question 3
Which antidepressant is most likely to cause sexual dysfunction as a prominent
adverse effect?
A) Bupropion
B) Mirtazapine
C) Sertraline
D) Vortioxetine
Correct Answer: C
Explanation: Sertraline, an SSRI, frequently causes sexual dysfunction (delayed
ejaculation, anorgasmia) due to serotonin-mediated inhibition of dopamine and
norepinephrine in sexual pathways. Bupropion and mirtazapine have lower rates.
Question 4
A patient with type 2 diabetes on metformin and glipizide presents with
palpitations, sweating, and confusion. Fingerstick glucose is 45 mg/dL. What is the
immediate next step?
A) Administer intramuscular glucagon
B) Give 15 g of oral glucose
C) Start an IV of dextrose 10% infusion
D) Hold glipizide for 24 hours
Correct Answer: B
*Explanation: The patient is conscious (only confusion) so oral glucose 15 g is first-
line for hypoglycemia; repeat glucose in 15 minutes. Glucagon is for unconscious
patients or when IV access is unavailable.*
Question 5
Which drug-class combination is contraindicated in a patient with a history of
angioedema related to lisinopril?
A) Losartan and hydrochlorothiazide
B) Amlodipine and metoprolol
C) Furosemide and spironolactone
D) Hydralazine and isosorbide dinitrate
,Correct Answer: A
Explanation: Losartan is an ARB; cross-reactivity for angioedema with ACE
inhibitors is low but exists. However, the combination of an ARB with a thiazide is
safe but losartan itself is contraindicated if ACE inhibitor angioedema was severe
because ARBs can rarely cause similar reactions.
Question 6
A patient taking rifampin for tuberculosis develops breakthrough vaginal bleeding
while on combined oral contraceptives. What is the primary mechanism?
A) Additive anticoagulant effect
B) CYP3A4 induction reducing estrogen levels
C) Direct uterine irritation
D) Protein binding displacement
Correct Answer: B
Explanation: Rifampin is a potent inducer of CYP3A4, accelerating the metabolism
of ethinyl estradiol and progestins, leading to reduced contraceptive efficacy and
breakthrough bleeding.
Question 7
A 55-year-old with bipolar I disorder on lithium therapy develops nausea, coarse
tremor, and confusion. Serum lithium level is 2.0 mEq/L. Which intervention is
most critical?
A) Increase fluid intake to 3 L/day
B) Administer activated charcoal
C) Hold lithium and assess renal function
D) Add haloperidol for agitation
Correct Answer: C
*Explanation: Symptoms and level 2.0 mEq/L indicate moderate toxicity.
Immediate holding of lithium and monitoring renal function is required;
hemodialysis is not yet indicated. Activated charcoal does not bind lithium.*
Question 8
Which statement best describes the mechanism of action of pimavanserin?
, A) Inverse agonist at 5-HT2A receptors
B) Partial dopamine D2 agonist
C) Nonselective monoamine oxidase inhibitor
D) Muscarinic M1 antagonist
Correct Answer: A
*Explanation: Pimavanserin is a selective 5-HT2A inverse agonist used for
Parkinson’s disease psychosis without blocking dopamine receptors, thus avoiding
worsening of motor symptoms.*
Question 9
A patient with chemotherapy-induced nausea is given aprepitant. This drug
primarily blocks which receptor?
A) NK1
B) 5-HT3
C) D2
D) H1
Correct Answer: A
*Explanation: Aprepitant is a neurokinin-1 (NK1) receptor antagonist, used in
combination with a 5-HT3 antagonist and dexamethasone for delayed CINV.*
Question 10
Which antibiotic is associated with red man syndrome (pruritus, flushing,
hypotension) when infused too rapidly?
A) Ciprofloxacin
B) Vancomycin
C) Doxycycline
D) Azithromycin
Correct Answer: B
Explanation: Vancomycin causes histamine release resulting in red man syndrome.
Slowing the infusion to at least 60 minutes prevents this reaction.
Question 11
A patient on chronic high-dose acetaminophen for osteoarthritis presents with
