NR566 | NR566 Advanced Pharmacology for Care
of the Family Wk 2 Final Exam v3 | Questions with
Correct Answers and Expert Explanation for Each
Question | Chamberlain
1. Which medication is a direct-acting cholinergic agonist primarily used for the
treatment of non-obstructive urinary retention?
A. Bethanechol
B. Atropine
C. Propranolol
D. Epinephrine
Correct Answer: A
Expert Explanation: Bethanechol is a muscarinic agonist that directly stimulates
the detrusor muscle of the bladder. This stimulation results in contraction of the
bladder and subsequent expulsion of urine. It is typically used in post-operative or
post-partum settings when urinary retention is not caused by a physical
obstruction.
2. When treating a patient for symptomatic bradycardia, which muscarinic antagonist
is most appropriate for emergency use?
A. Bethanechol
,C. Oxybutynin
B. Pilocarpine
D. Atropine
Correct Answer: D
Expert Explanation: Atropine functions as a competitive muscarinic receptor
antagonist that blocks the inhibitory effects of the vagus nerve on the heart. By
inhibiting parasympathetic activity, it increases the heart rate and improves cardiac
output during bradycardic events. This medication is the gold standard for
immediate pharmacological intervention in symptomatic bradycardia.
3. What is the primary mechanism of action for Albuterol in the management of acute
asthma symptoms?
A. Inhibition of leukotriene receptors
B. Antagonism of muscarinic receptors
C. Suppression of cortisol production
D. Stimulation of Beta-2 adrenergic receptors
Correct Answer: D
Expert Explanation: Albuterol is a short-acting beta-2 agonist (SABA) that
selectively binds to beta-2 receptors in the lungs. This binding activates adenyl
,cyclase, which increases cAMP levels and leads to the relaxation of bronchial smooth
muscle. Because of its rapid onset of action, it is the primary rescue medication for
acute bronchospasms.
4. Which of the following is a potential serious side effect of non-selective beta-
blockers like Propranolol in patients with respiratory disease?
A. Bronchoconstriction
B. Tachycardia
C. Hypertension
D. Hypokalemia
Correct Answer: A
Expert Explanation: Propranolol is a non-selective beta-blocker that inhibits both
Beta-1 and Beta-2 receptors. By blocking Beta-2 receptors in the lungs, it can cause
significant bronchoconstriction, which is dangerous for patients with asthma or
COPD. Clinicians should generally prefer cardioselective beta-blockers for patients
with underlying reactive airway disease.
5. A patient is prescribed Salmeterol for long-term asthma control. What is an
essential teaching point regarding this medication?
A. It should be used for acute rescue during an attack.
B. It must be taken with an inhaled corticosteroid (ICS).
, C. It should only be taken when the patient feels short of breath.
D. It causes immediate relief within 5 minutes.
Correct Answer: B
Expert Explanation: Salmeterol is a long-acting beta-2 agonist (LABA) that has a
delayed onset of action and is not intended for rescue use. When used alone in
asthma patients, LABAs have been associated with an increased risk of asthma-
related death. Therefore, current guidelines mandate that LABAs must always be
used in combination with an inhaled corticosteroid for asthma management.
6. Which pharmacological agent is the first-line choice for treating stable Chronic
Obstructive Pulmonary Disease (COPD)?
A. Low-flow oxygen therapy
B. Oral corticosteroids
C. Systemic antibiotics
D. Long-acting muscarinic antagonists (LAMA)
Correct Answer: D
Expert Explanation: Long-acting muscarinic antagonists (LAMAs), such as
Tiotropium, are foundational in the maintenance treatment of COPD. They work by
blocking the broncho-constricting effects of acetylcholine on M3 receptors in the
of the Family Wk 2 Final Exam v3 | Questions with
Correct Answers and Expert Explanation for Each
Question | Chamberlain
1. Which medication is a direct-acting cholinergic agonist primarily used for the
treatment of non-obstructive urinary retention?
A. Bethanechol
B. Atropine
C. Propranolol
D. Epinephrine
Correct Answer: A
Expert Explanation: Bethanechol is a muscarinic agonist that directly stimulates
the detrusor muscle of the bladder. This stimulation results in contraction of the
bladder and subsequent expulsion of urine. It is typically used in post-operative or
post-partum settings when urinary retention is not caused by a physical
obstruction.
2. When treating a patient for symptomatic bradycardia, which muscarinic antagonist
is most appropriate for emergency use?
A. Bethanechol
,C. Oxybutynin
B. Pilocarpine
D. Atropine
Correct Answer: D
Expert Explanation: Atropine functions as a competitive muscarinic receptor
antagonist that blocks the inhibitory effects of the vagus nerve on the heart. By
inhibiting parasympathetic activity, it increases the heart rate and improves cardiac
output during bradycardic events. This medication is the gold standard for
immediate pharmacological intervention in symptomatic bradycardia.
3. What is the primary mechanism of action for Albuterol in the management of acute
asthma symptoms?
A. Inhibition of leukotriene receptors
B. Antagonism of muscarinic receptors
C. Suppression of cortisol production
D. Stimulation of Beta-2 adrenergic receptors
Correct Answer: D
Expert Explanation: Albuterol is a short-acting beta-2 agonist (SABA) that
selectively binds to beta-2 receptors in the lungs. This binding activates adenyl
,cyclase, which increases cAMP levels and leads to the relaxation of bronchial smooth
muscle. Because of its rapid onset of action, it is the primary rescue medication for
acute bronchospasms.
4. Which of the following is a potential serious side effect of non-selective beta-
blockers like Propranolol in patients with respiratory disease?
A. Bronchoconstriction
B. Tachycardia
C. Hypertension
D. Hypokalemia
Correct Answer: A
Expert Explanation: Propranolol is a non-selective beta-blocker that inhibits both
Beta-1 and Beta-2 receptors. By blocking Beta-2 receptors in the lungs, it can cause
significant bronchoconstriction, which is dangerous for patients with asthma or
COPD. Clinicians should generally prefer cardioselective beta-blockers for patients
with underlying reactive airway disease.
5. A patient is prescribed Salmeterol for long-term asthma control. What is an
essential teaching point regarding this medication?
A. It should be used for acute rescue during an attack.
B. It must be taken with an inhaled corticosteroid (ICS).
, C. It should only be taken when the patient feels short of breath.
D. It causes immediate relief within 5 minutes.
Correct Answer: B
Expert Explanation: Salmeterol is a long-acting beta-2 agonist (LABA) that has a
delayed onset of action and is not intended for rescue use. When used alone in
asthma patients, LABAs have been associated with an increased risk of asthma-
related death. Therefore, current guidelines mandate that LABAs must always be
used in combination with an inhaled corticosteroid for asthma management.
6. Which pharmacological agent is the first-line choice for treating stable Chronic
Obstructive Pulmonary Disease (COPD)?
A. Low-flow oxygen therapy
B. Oral corticosteroids
C. Systemic antibiotics
D. Long-acting muscarinic antagonists (LAMA)
Correct Answer: D
Expert Explanation: Long-acting muscarinic antagonists (LAMAs), such as
Tiotropium, are foundational in the maintenance treatment of COPD. They work by
blocking the broncho-constricting effects of acetylcholine on M3 receptors in the
