2026/2027
Pharmacology Final GWC EGAN
Spring Exam 2026/2027 for Golden
West College: Complete Review
Book with Exam Prep, Quizzes,
Rationales, and Practice Assessments
Question 1:
A 68-year-old male presents with lower urinary tract symptoms consistent with
benign prostatic hyperplasia (BPH) and has a history of hypertension. Which
medication is most appropriate for managing both conditions?
A. Tamsulosin
B. Doxazosin
C. Finasteride
D. Oxybutynin
Correct Answer: B. Doxazosin
Rationale:
Doxazosin is an alpha-1 adrenergic blocker that relaxes smooth muscle in the bladder
neck and prostate, improving urinary flow in BPH while also lowering blood pressure,
making it useful in patients with coexisting hypertension. Tamsulosin also treats BPH
but has minimal effect on blood pressure. Finasteride reduces prostate size but has no
effect on hypertension and takes months for full benefit. Oxybutynin is used for
overactive bladder and may worsen urinary retention in BPH.
Question 2:
A patient with BPH is prescribed tamsulosin and dutasteride. What is the primary
reason for combining these medications?
A. To provide immediate pain relief and reduce infection risk
B. To rapidly shrink the prostate and prevent urinary retention
C. To provide rapid symptom relief and long-term prostate size reduction
D. To treat both bladder spasms and kidney stones
Correct Answer: C. To provide rapid symptom relief and long-term prostate size
reduction
Rationale:
Tamsulosin (alpha-blocker) provides rapid improvement in urinary flow by relaxing
,2026/2027
smooth muscle, while dutasteride (5-alpha-reductase inhibitor) gradually shrinks the
prostate by reducing dihydrotestosterone levels. However, dutasteride takes up to 6
months for full effect. The combination is used to achieve both immediate symptom
relief and long-term reduction in prostate size. The other options incorrectly describe
mechanisms or indications.
Question 3:
A male patient with BPH develops recurrent urinary tract infections and hematuria.
What is the most appropriate next step?
A. Start antibiotics immediately
B. Begin oxybutynin therapy
C. Refer to a urologist
D. Increase fluid intake only
Correct Answer: C. Refer to a urologist
Rationale:
Recurrent UTIs and hematuria in a patient with BPH may indicate complications such
as urinary obstruction or malignancy and require specialist evaluation. Urology
referral is essential. Antibiotics may be needed if infection is confirmed but do not
address the underlying cause. Oxybutynin may worsen urinary retention. Increasing
fluids alone is insufficient.
Question 4:
A patient reports dribbling urine and difficulty initiating urination. Which medication
is most appropriate?
A. Bethanechol
B. Oxybutynin
C. Tamsulosin
D. Furosemide
Correct Answer: A. Bethanechol
Rationale:
Bethanechol is a cholinergic agonist that stimulates detrusor muscle contraction,
improving bladder emptying in urinary retention or voiding dysfunction. Oxybutynin
reduces bladder contractions and would worsen retention. Tamsulosin improves flow
in BPH but does not directly stimulate detrusor contraction. Furosemide increases
urine production and is not appropriate.
Question 5:
Primary erectile dysfunction is most commonly associated with which cause?
,2026/2027
A. Endocrine imbalance only
B. Psychological or neurovascular causes
C. Urinary tract infection
D. Kidney failure exclusively
Correct Answer: B. Psychological or neurovascular causes
Rationale:
Primary erectile dysfunction is often due to psychological factors or identifiable
neurovascular abnormalities. A full medical and psychosocial evaluation is required.
Endocrine disorders may contribute but are not the most common sole cause. UTIs
and kidney failure are not primary causes of erectile dysfunction.
Question 6:
Why must PDE5 inhibitors such as sildenafil not be taken with nitrates?
A. They increase blood sugar levels
B. They cause severe hypotension due to vasodilation
C. They increase heart rate dangerously
D. They reduce kidney perfusion only
Correct Answer: B. They cause severe hypotension due to vasodilation
Rationale:
Sildenafil enhances nitric oxide-mediated vasodilation, and when combined with
nitrates, the effect is additive, causing potentially life-threatening hypotension. This
interaction is contraindicated. They do not primarily affect blood sugar, kidney
perfusion, or cause isolated tachycardia.
Question 7:
A patient needs erectile dysfunction medication with the fastest onset of action.
Which drug is most appropriate?
A. Sildenafil
B. Tadalafil
C. Avanafil
D. Vardenafil
Correct Answer: C. Avanafil
Rationale:
Avanafil has the shortest onset of action, often working within 15–30 minutes,
making it suitable for on-demand use. Sildenafil and vardenafil take longer to act, and
tadalafil has a longer duration but slower onset.
, 2026/2027
Question 8:
A patient with urge incontinence is prescribed oxybutynin. What is its mechanism of
action?
A. Stimulates bladder contraction
B. Increases urine output
C. Decreases detrusor overactivity
D. Relaxes urethral sphincter only
Correct Answer: C. Decreases detrusor overactivity
Rationale:
Oxybutynin is an anticholinergic agent that reduces involuntary detrusor muscle
contractions, improving symptoms of urge incontinence. It does not stimulate bladder
contraction or increase urine output. It acts on bladder smooth muscle rather than only
the urethral sphincter.
Question 9:
Which instruction should be given to a patient taking oxybutynin?
A. Restrict fluid intake completely
B. Increase fiber and fluids
C. Avoid all carbohydrates
D. Increase sodium intake
Correct Answer: B. Increase fiber and fluids
Rationale:
Oxybutynin can cause constipation due to anticholinergic effects. Increasing dietary
fiber and fluid intake helps prevent this complication. Complete fluid restriction is
harmful. Sodium and carbohydrate intake are unrelated to this medication’s side
effects.
Question 10:
A patient is prescribed desmopressin for diabetes insipidus. What is the primary
nursing concern?
A. Hyperkalemia
B. Hypoglycemia
C. Hyponatremia
D. Hypercalcemia
Correct Answer: C. Hyponatremia
Pharmacology Final GWC EGAN
Spring Exam 2026/2027 for Golden
West College: Complete Review
Book with Exam Prep, Quizzes,
Rationales, and Practice Assessments
Question 1:
A 68-year-old male presents with lower urinary tract symptoms consistent with
benign prostatic hyperplasia (BPH) and has a history of hypertension. Which
medication is most appropriate for managing both conditions?
A. Tamsulosin
B. Doxazosin
C. Finasteride
D. Oxybutynin
Correct Answer: B. Doxazosin
Rationale:
Doxazosin is an alpha-1 adrenergic blocker that relaxes smooth muscle in the bladder
neck and prostate, improving urinary flow in BPH while also lowering blood pressure,
making it useful in patients with coexisting hypertension. Tamsulosin also treats BPH
but has minimal effect on blood pressure. Finasteride reduces prostate size but has no
effect on hypertension and takes months for full benefit. Oxybutynin is used for
overactive bladder and may worsen urinary retention in BPH.
Question 2:
A patient with BPH is prescribed tamsulosin and dutasteride. What is the primary
reason for combining these medications?
A. To provide immediate pain relief and reduce infection risk
B. To rapidly shrink the prostate and prevent urinary retention
C. To provide rapid symptom relief and long-term prostate size reduction
D. To treat both bladder spasms and kidney stones
Correct Answer: C. To provide rapid symptom relief and long-term prostate size
reduction
Rationale:
Tamsulosin (alpha-blocker) provides rapid improvement in urinary flow by relaxing
,2026/2027
smooth muscle, while dutasteride (5-alpha-reductase inhibitor) gradually shrinks the
prostate by reducing dihydrotestosterone levels. However, dutasteride takes up to 6
months for full effect. The combination is used to achieve both immediate symptom
relief and long-term reduction in prostate size. The other options incorrectly describe
mechanisms or indications.
Question 3:
A male patient with BPH develops recurrent urinary tract infections and hematuria.
What is the most appropriate next step?
A. Start antibiotics immediately
B. Begin oxybutynin therapy
C. Refer to a urologist
D. Increase fluid intake only
Correct Answer: C. Refer to a urologist
Rationale:
Recurrent UTIs and hematuria in a patient with BPH may indicate complications such
as urinary obstruction or malignancy and require specialist evaluation. Urology
referral is essential. Antibiotics may be needed if infection is confirmed but do not
address the underlying cause. Oxybutynin may worsen urinary retention. Increasing
fluids alone is insufficient.
Question 4:
A patient reports dribbling urine and difficulty initiating urination. Which medication
is most appropriate?
A. Bethanechol
B. Oxybutynin
C. Tamsulosin
D. Furosemide
Correct Answer: A. Bethanechol
Rationale:
Bethanechol is a cholinergic agonist that stimulates detrusor muscle contraction,
improving bladder emptying in urinary retention or voiding dysfunction. Oxybutynin
reduces bladder contractions and would worsen retention. Tamsulosin improves flow
in BPH but does not directly stimulate detrusor contraction. Furosemide increases
urine production and is not appropriate.
Question 5:
Primary erectile dysfunction is most commonly associated with which cause?
,2026/2027
A. Endocrine imbalance only
B. Psychological or neurovascular causes
C. Urinary tract infection
D. Kidney failure exclusively
Correct Answer: B. Psychological or neurovascular causes
Rationale:
Primary erectile dysfunction is often due to psychological factors or identifiable
neurovascular abnormalities. A full medical and psychosocial evaluation is required.
Endocrine disorders may contribute but are not the most common sole cause. UTIs
and kidney failure are not primary causes of erectile dysfunction.
Question 6:
Why must PDE5 inhibitors such as sildenafil not be taken with nitrates?
A. They increase blood sugar levels
B. They cause severe hypotension due to vasodilation
C. They increase heart rate dangerously
D. They reduce kidney perfusion only
Correct Answer: B. They cause severe hypotension due to vasodilation
Rationale:
Sildenafil enhances nitric oxide-mediated vasodilation, and when combined with
nitrates, the effect is additive, causing potentially life-threatening hypotension. This
interaction is contraindicated. They do not primarily affect blood sugar, kidney
perfusion, or cause isolated tachycardia.
Question 7:
A patient needs erectile dysfunction medication with the fastest onset of action.
Which drug is most appropriate?
A. Sildenafil
B. Tadalafil
C. Avanafil
D. Vardenafil
Correct Answer: C. Avanafil
Rationale:
Avanafil has the shortest onset of action, often working within 15–30 minutes,
making it suitable for on-demand use. Sildenafil and vardenafil take longer to act, and
tadalafil has a longer duration but slower onset.
, 2026/2027
Question 8:
A patient with urge incontinence is prescribed oxybutynin. What is its mechanism of
action?
A. Stimulates bladder contraction
B. Increases urine output
C. Decreases detrusor overactivity
D. Relaxes urethral sphincter only
Correct Answer: C. Decreases detrusor overactivity
Rationale:
Oxybutynin is an anticholinergic agent that reduces involuntary detrusor muscle
contractions, improving symptoms of urge incontinence. It does not stimulate bladder
contraction or increase urine output. It acts on bladder smooth muscle rather than only
the urethral sphincter.
Question 9:
Which instruction should be given to a patient taking oxybutynin?
A. Restrict fluid intake completely
B. Increase fiber and fluids
C. Avoid all carbohydrates
D. Increase sodium intake
Correct Answer: B. Increase fiber and fluids
Rationale:
Oxybutynin can cause constipation due to anticholinergic effects. Increasing dietary
fiber and fluid intake helps prevent this complication. Complete fluid restriction is
harmful. Sodium and carbohydrate intake are unrelated to this medication’s side
effects.
Question 10:
A patient is prescribed desmopressin for diabetes insipidus. What is the primary
nursing concern?
A. Hyperkalemia
B. Hypoglycemia
C. Hyponatremia
D. Hypercalcemia
Correct Answer: C. Hyponatremia
