NR 565 Exam 2: Advanced Pharmacology Fundamentals V1
Updated and Latest Questions and Correct Answers with
Rationale - Chamberlain University
1. Which neurotransmitter is primarily targeted by cholinesterase inhibitors such as
donepezil in the treatment of Alzheimer’s disease?
A. Acetylcholine
B. Serotonin
C. Dopamine
D. GABA
Ans: A
Rationale: Donepezil belongs to the class of medications known as acetylcholinesterase inhibitors. These
drugs work by preventing the enzyme acetylcholinesterase from breaking down acetylcholine in the
synaptic cleft. Increasing the availability of acetylcholine helps to improve communication between nerve
cells in the brain. This mechanism is intended to stabilize or improve cognitive function in patients with
dementia. It is important to note that these medications do not cure the disease but manage symptoms.
Nurses must monitor for side effects related to increased parasympathetic activity like bradycardia.
,2. A patient prescribed Albuterol for asthma reports feeling ‘jittery’ and having a ‘racing
heart.’ How should the nurse practitioner interpret these symptoms?
A. These are symptoms of an allergic reaction to the propellant.
B. These symptoms indicate the dose is too low to be effective.
C. The patient is likely experiencing a paradoxical bronchospasm.
D. These are expected side effects of Beta-2 adrenergic stimulation.
Ans: D
Rationale: Albuterol is a short-acting beta-2 agonist used primarily for rapid bronchodilation during
asthma attacks. While it is selective for beta-2 receptors in the lungs, it can cause some crossover
stimulation of beta-1 receptors in the heart. This stimulation leads to common side effects such as
tachycardia and tremors, often described by patients as feeling jittery. These effects are usually dose-
related and transient in nature. Practitioners should educate patients on the difference between expected
side effects and serious adverse events. Proper inhaler technique can sometimes reduce systemic
absorption and minimize these cardiovascular effects.
,3. Which of the following is a critical monitoring parameter for a patient starting Valproic
Acid for seizure management?
A. Renal function and creatinine clearance
B. Bone mineral density and Vitamin D levels
C. Visual acuity and intraocular pressure
D. Liver function tests and platelet count
Ans: D
Rationale: Valproic acid is a broad-spectrum antiepileptic drug used for various types of seizures and
bipolar disorder. One of its most significant risks is hepatotoxicity, which can be fatal, especially in
children. Therefore, baseline and periodic liver function tests are essential for all patients on this therapy.
Additionally, valproic acid can cause thrombocytopenia, making regular platelet counts a necessary
component of monitoring. Patients should be taught to report any signs of unusual bruising or jaundice
immediately. Managing this medication requires careful titration to balance therapeutic levels against
potential systemic toxicity.
, 4. A nurse practitioner is treating a patient with Parkinson’s disease. Why is Carbidopa
administered in combination with Levodopa?
A. To prevent the breakdown of dopamine in the central nervous system.
B. To inhibit peripheral decarboxylation of levodopa, increasing its availability to the brain.
C. To enhance the crossing of dopamine through the blood-brain barrier.
D. To stimulate dopamine receptors directly in the substantia nigra.
Ans: B
Rationale: Levodopa is the precursor to dopamine and can cross the blood-brain barrier, unlike
dopamine itself. However, without a protector, much of the levodopa is converted to dopamine in the
systemic circulation before reaching the brain. Carbidopa acts as a peripheral decarboxylase inhibitor
that stops this premature conversion. This combination ensures that a higher percentage of levodopa
reaches the central nervous system to be converted into functional dopamine. Furthermore, reducing
peripheral dopamine levels helps minimize side effects like severe nausea and vomiting. This synergy is
fundamental to the efficacy of the most common Parkinson’s treatments.
Updated and Latest Questions and Correct Answers with
Rationale - Chamberlain University
1. Which neurotransmitter is primarily targeted by cholinesterase inhibitors such as
donepezil in the treatment of Alzheimer’s disease?
A. Acetylcholine
B. Serotonin
C. Dopamine
D. GABA
Ans: A
Rationale: Donepezil belongs to the class of medications known as acetylcholinesterase inhibitors. These
drugs work by preventing the enzyme acetylcholinesterase from breaking down acetylcholine in the
synaptic cleft. Increasing the availability of acetylcholine helps to improve communication between nerve
cells in the brain. This mechanism is intended to stabilize or improve cognitive function in patients with
dementia. It is important to note that these medications do not cure the disease but manage symptoms.
Nurses must monitor for side effects related to increased parasympathetic activity like bradycardia.
,2. A patient prescribed Albuterol for asthma reports feeling ‘jittery’ and having a ‘racing
heart.’ How should the nurse practitioner interpret these symptoms?
A. These are symptoms of an allergic reaction to the propellant.
B. These symptoms indicate the dose is too low to be effective.
C. The patient is likely experiencing a paradoxical bronchospasm.
D. These are expected side effects of Beta-2 adrenergic stimulation.
Ans: D
Rationale: Albuterol is a short-acting beta-2 agonist used primarily for rapid bronchodilation during
asthma attacks. While it is selective for beta-2 receptors in the lungs, it can cause some crossover
stimulation of beta-1 receptors in the heart. This stimulation leads to common side effects such as
tachycardia and tremors, often described by patients as feeling jittery. These effects are usually dose-
related and transient in nature. Practitioners should educate patients on the difference between expected
side effects and serious adverse events. Proper inhaler technique can sometimes reduce systemic
absorption and minimize these cardiovascular effects.
,3. Which of the following is a critical monitoring parameter for a patient starting Valproic
Acid for seizure management?
A. Renal function and creatinine clearance
B. Bone mineral density and Vitamin D levels
C. Visual acuity and intraocular pressure
D. Liver function tests and platelet count
Ans: D
Rationale: Valproic acid is a broad-spectrum antiepileptic drug used for various types of seizures and
bipolar disorder. One of its most significant risks is hepatotoxicity, which can be fatal, especially in
children. Therefore, baseline and periodic liver function tests are essential for all patients on this therapy.
Additionally, valproic acid can cause thrombocytopenia, making regular platelet counts a necessary
component of monitoring. Patients should be taught to report any signs of unusual bruising or jaundice
immediately. Managing this medication requires careful titration to balance therapeutic levels against
potential systemic toxicity.
, 4. A nurse practitioner is treating a patient with Parkinson’s disease. Why is Carbidopa
administered in combination with Levodopa?
A. To prevent the breakdown of dopamine in the central nervous system.
B. To inhibit peripheral decarboxylation of levodopa, increasing its availability to the brain.
C. To enhance the crossing of dopamine through the blood-brain barrier.
D. To stimulate dopamine receptors directly in the substantia nigra.
Ans: B
Rationale: Levodopa is the precursor to dopamine and can cross the blood-brain barrier, unlike
dopamine itself. However, without a protector, much of the levodopa is converted to dopamine in the
systemic circulation before reaching the brain. Carbidopa acts as a peripheral decarboxylase inhibitor
that stops this premature conversion. This combination ensures that a higher percentage of levodopa
reaches the central nervous system to be converted into functional dopamine. Furthermore, reducing
peripheral dopamine levels helps minimize side effects like severe nausea and vomiting. This synergy is
fundamental to the efficacy of the most common Parkinson’s treatments.
