NURS 6521N Exam 1 V3 | NURS 6521N
Advanced Pharmacology | Actual Q&A
with Rationale (NURS6521N Exam 1) |
Walden University
1. A patient is prescribed a drug that is highly protein-bound. If the patient’s albumin levels
are low, what is the most significant pharmacological concern?
A. The drug will be rapidly excreted by the kidneys.
B. The drug will require a higher dose to achieve a therapeutic effect.
C. The drug will become inactive and lose its therapeutic effect.
D. There will be an increased level of free, active drug in the bloodstream, increasing the
risk of toxicity.
Answer: D
Rationale: Albumin is the primary protein to which drugs bind in the plasma. When
albumin levels are low, fewer binding sites are available, resulting in a higher
concentration of unbound or free drug. This free drug is the active portion that can cross
membranes and exert effects, significantly increasing the risk of adverse reactions or
toxicity.
2. When prescribing for an elderly patient, the Advanced Practice Nurse (APN) knows that
which physiological change most commonly affects drug excretion?
A. Increased gastric pH.
,B. Increased hepatic blood flow.
C. Decreased body fat percentage.
D. Reduced glomerular filtration rate (GFR).
Answer: D
Rationale: Aging is characteristically associated with a decline in renal function,
specifically a reduction in the glomerular filtration rate. Since many drugs are primarily
cleared through the kidneys, this decline can lead to drug accumulation and prolonged half-
lives. Monitoring serum creatinine and calculating creatinine clearance is essential for safe
dosing in geriatric populations.
3. According to the Controlled Substances Act, which of the following is true regarding
Schedule II (C-II) drugs?
A. They have a high potential for abuse and cannot be refilled.
B. They may be refilled up to five times within six months.
C. They are considered over-the-counter medications.
D. They require a signature but can be called into the pharmacy orally.
Answer: A
Rationale: Schedule II drugs are classified as substances with a high potential for abuse
and severe psychological or physical dependence. Federal law prohibits refills on Schedule
II prescriptions; a new written or electronic prescription is required for every dispensing.
, These regulations are strictly enforced to prevent diversion and misuse of potent
medications like opioids and stimulants.
4. What is the primary reason that many medications do not have FDA approval for use in
pediatric populations?
A. Children do not respond to adult medications.
B. Medications are inherently too toxic for children.
C. Pediatric doses are too small to be measured accurately.
D. Ethical and logistical difficulties in conducting clinical trials in children.
Answer: D
Rationale: Historically, pediatric patients have been excluded from clinical trials due to
ethical concerns regarding informed consent and potential long-term developmental risks.
This has resulted in many drugs being used ‘off-label’ in pediatrics based on data
extrapolated from adult studies. Recent legislation, such as the Best Pharmaceuticals for
Children Act, now provides incentives for manufacturers to study drugs in the pediatric
population.
5. A patient experiences an ‘idiosyncratic’ drug reaction. How should the nurse practitioner
define this phenomenon?
A. An expected side effect based on the drug’s mechanism.
B. A dose-dependent toxic effect.
C. An unpredictable, abnormal response often caused by a genetic predisposition.
Advanced Pharmacology | Actual Q&A
with Rationale (NURS6521N Exam 1) |
Walden University
1. A patient is prescribed a drug that is highly protein-bound. If the patient’s albumin levels
are low, what is the most significant pharmacological concern?
A. The drug will be rapidly excreted by the kidneys.
B. The drug will require a higher dose to achieve a therapeutic effect.
C. The drug will become inactive and lose its therapeutic effect.
D. There will be an increased level of free, active drug in the bloodstream, increasing the
risk of toxicity.
Answer: D
Rationale: Albumin is the primary protein to which drugs bind in the plasma. When
albumin levels are low, fewer binding sites are available, resulting in a higher
concentration of unbound or free drug. This free drug is the active portion that can cross
membranes and exert effects, significantly increasing the risk of adverse reactions or
toxicity.
2. When prescribing for an elderly patient, the Advanced Practice Nurse (APN) knows that
which physiological change most commonly affects drug excretion?
A. Increased gastric pH.
,B. Increased hepatic blood flow.
C. Decreased body fat percentage.
D. Reduced glomerular filtration rate (GFR).
Answer: D
Rationale: Aging is characteristically associated with a decline in renal function,
specifically a reduction in the glomerular filtration rate. Since many drugs are primarily
cleared through the kidneys, this decline can lead to drug accumulation and prolonged half-
lives. Monitoring serum creatinine and calculating creatinine clearance is essential for safe
dosing in geriatric populations.
3. According to the Controlled Substances Act, which of the following is true regarding
Schedule II (C-II) drugs?
A. They have a high potential for abuse and cannot be refilled.
B. They may be refilled up to five times within six months.
C. They are considered over-the-counter medications.
D. They require a signature but can be called into the pharmacy orally.
Answer: A
Rationale: Schedule II drugs are classified as substances with a high potential for abuse
and severe psychological or physical dependence. Federal law prohibits refills on Schedule
II prescriptions; a new written or electronic prescription is required for every dispensing.
, These regulations are strictly enforced to prevent diversion and misuse of potent
medications like opioids and stimulants.
4. What is the primary reason that many medications do not have FDA approval for use in
pediatric populations?
A. Children do not respond to adult medications.
B. Medications are inherently too toxic for children.
C. Pediatric doses are too small to be measured accurately.
D. Ethical and logistical difficulties in conducting clinical trials in children.
Answer: D
Rationale: Historically, pediatric patients have been excluded from clinical trials due to
ethical concerns regarding informed consent and potential long-term developmental risks.
This has resulted in many drugs being used ‘off-label’ in pediatrics based on data
extrapolated from adult studies. Recent legislation, such as the Best Pharmaceuticals for
Children Act, now provides incentives for manufacturers to study drugs in the pediatric
population.
5. A patient experiences an ‘idiosyncratic’ drug reaction. How should the nurse practitioner
define this phenomenon?
A. An expected side effect based on the drug’s mechanism.
B. A dose-dependent toxic effect.
C. An unpredictable, abnormal response often caused by a genetic predisposition.
