NSG 5240 Midterm Focus Sheet Fall 2026 Complete Q&A Update |
South College
Dominate your advanced nursing pharmacology exam with this comprehensive midterm focus
sheet tailored specifically to the South College NSG 5240 curriculum. This premium study bank
features a presentation-ready layout with the correct answers highlighted in bold italics along
with exhaustive, evidence-based clinical rationales for every scenario. Designed with clean spacing
between items to maximize readability, this high-converting resource is your key to mastering complex
pharmacodynamics, receptor mechanisms, and safe prescribing guidelines.
Question 1
A 72-year-old male with chronic kidney disease (CKD Stage 3) requires an adjustment
to his daily cardiovascular medications. The Nurse Practitioner utilizes the Cockcroft-
Gault equation to estimate renal function rather than relying solely on serum creatinine.
Which factor explains why serum creatinine alone can underrepresent renal impairment
in this patient?
• (A) Aging increases the rate of creatinine synthesis in the liver.
• (B) Age-related loss of lean muscle mass reduces baseline creatinine production.
• (C) High-protein diets in older adults mask underlying nephron loss.
• (D) Structural changes in the bladder alter the chemical structure of creatinine.
Correct Answer: (B) Age-related loss of lean muscle mass reduces baseline
creatinine production.
Rationale: Creatinine is an endogenous waste product of skeletal muscle breakdown.
Because older adults naturally experience sarcopenia (loss of lean muscle tissue), they
produce less baseline creatinine. Consequently, an older patient can have significant
renal impairment and a reduced glomerular filtration rate (GFR) while maintaining a
deceptively normal serum creatinine level.
Question 2
The Nurse Practitioner is reviewing the therapeutic profile of an 81-year-old female
patient taking multiple highly protein-bound medications, including warfarin and
,phenytoin. The patient's recent labs reveal a mild decline in serum albumin (3.1 g/dL).
What is the primary pharmacokinetic consequence of this change?
• (A) The liver will increase its metabolic clearance of both drugs, eliminating them
faster.
• (B) The active, unbound fraction of these medications will increase, raising the
risk of toxicity.
• (C) The medications will bind irreversibly to adipose tissue, delaying their onset
of action.
• (D) Intestinal absorption of water-soluble compounds will double.
Correct Answer: (B) The active, unbound fraction of these medications will
increase, raising the risk of toxicity.
Rationale: Serum albumin levels frequently decline in older adults due to malnutrition,
chronic inflammation, or decreased hepatic synthesis. When albumin levels are low,
there are fewer binding sites available for highly protein-bound drugs. This results in a
higher concentration of free (unbound) drug in the bloodstream, which is the
pharmacologically active form that exerts therapeutic or toxic effects.
Question 3
An 84-year-old male is prescribed a lipophilic medication for long-term management of
a neurological condition. Based on age-related changes in body composition, how
should the Nurse Practitioner expect the volume of distribution (\(V_{d}\)) and
elimination half-life (\(t_{1/2}\)) of this drug to change?
• (A) Decreased \(V_{d}\) and shortened \(t_{1/2}\).
• (B) Increased \(V_{d}\) and shortened \(t_{1/2}\).
• (C) Decreased \(V_{d}\) and prolonged \(t_{1/2}\).
• (D) Increased \(V_{d}\) and prolonged \(t_{1/2}\).
Correct Answer: (D) Increased \(V_{d}\) and prolonged \(t_{1/2}\).
,Rationale: As humans age, total body water and lean muscle mass decrease, while the
percentage of total body fat increases. Lipophilic (fat-soluble) medications distribute
widely into this expanded adipose tissue reservoir, significantly increasing their volume
of distribution (\(V_{d}\)). Because the drug is sequestered in fat cells, it takes longer for
the liver and kidneys to clear it, resulting in a prolonged elimination half-life (\(t_{1/2}\)).
Question 4
A 76-year-old female patient with a history of persistent insomnia requests a
prescription for a sedative. According to the Beers Criteria guidelines, which medication
should the Nurse Practitioner avoid due to its high risk of causing cognitive impairment,
delirium, and falls in older adults?
• (A) Melatonin
• (B) Diazepam
• (C) Zolpidem at the lowest effective dose
• (D) Ramelteon
Correct Answer: (B) Diazepam
Rationale: Diazepam is a long-acting benzodiazepine with active metabolites that give it
an exceptionally prolonged half-life in older adults (often exceeding 100 hours). The
Beers Criteria strongly recommends avoiding long-acting benzodiazepines in geriatric
patients because they accumulate in tissue, causing daytime somnolence, cognitive
slowing, delirium, ataxia, and a significantly increased risk of motor vehicle accidents
and hip fractures.
Question 5
A 69-year-old patient presents to the primary care clinic with a sitting blood pressure of
162/74 mmHg. The patient undergoes serial blood pressure monitoring, which confirms
a diagnosis of Isolated Systolic Hypertension (ISH). What underlying pathophysiological
change causes this specific presentation?
, • (A) Excessive production of aldosterone by the adrenal cortex.
• (B) Increased arterial compliance and decreased peripheral vascular resistance.
• (C) Stiffening of the large central arteries due to collagen deposition and loss of
elastin.
• (D) Sustained hyperactivation of the parasympathetic nervous system.
Correct Answer: (C) Stiffening of the large central arteries due to collagen
deposition and loss of elastin.
Rationale: Isolated Systolic Hypertension (systolic BP \(\ge \) 130 mmHg with a diastolic
BP < 80 mmHg) is the most common form of hypertension in older adults. It is primarily
driven by age-related structural changes in the vascular walls, specifically the cross-
linking of collagen and degradation of elastin fibers. This causes structural stiffening of
the aorta and large arteries, preventing them from dampening the high-pressure wave
of ventricular contraction.
Question 6
An 83-year-old male with severe osteoarthritis of the knees has been self-medicating
with over-the-counter naproxen, taking 440 mg twice daily for the past three weeks. For
which serious complications should the Nurse Practitioner screen during this patient's
wellness visit?
• (A) Acute kidney injury, hypertension, and gastrointestinal bleeding.
• (B) Pulmonary fibrosis, hepatic failure, and profound hypocalcemia.
• (C) Metabolic alkalosis, profound hypokalemia, and leukopenia.
• (D) Neuroleptic malignant syndrome and peripheral neuropathy.
Correct Answer: (A) Acute kidney injury, hypertension, and gastrointestinal
bleeding.
Rationale: Nonsteroidal anti-inflammatory drugs (NSAIDs) like naproxen present
significant hazards to older adults. They inhibit cyclooxygenase (COX) enzymes,
reducing cytoprotective prostaglandins in the gastric mucosa (increasing GI
ulceration/bleeding risks) and blocking vasodilatory prostaglandins in the kidneys. This
South College
Dominate your advanced nursing pharmacology exam with this comprehensive midterm focus
sheet tailored specifically to the South College NSG 5240 curriculum. This premium study bank
features a presentation-ready layout with the correct answers highlighted in bold italics along
with exhaustive, evidence-based clinical rationales for every scenario. Designed with clean spacing
between items to maximize readability, this high-converting resource is your key to mastering complex
pharmacodynamics, receptor mechanisms, and safe prescribing guidelines.
Question 1
A 72-year-old male with chronic kidney disease (CKD Stage 3) requires an adjustment
to his daily cardiovascular medications. The Nurse Practitioner utilizes the Cockcroft-
Gault equation to estimate renal function rather than relying solely on serum creatinine.
Which factor explains why serum creatinine alone can underrepresent renal impairment
in this patient?
• (A) Aging increases the rate of creatinine synthesis in the liver.
• (B) Age-related loss of lean muscle mass reduces baseline creatinine production.
• (C) High-protein diets in older adults mask underlying nephron loss.
• (D) Structural changes in the bladder alter the chemical structure of creatinine.
Correct Answer: (B) Age-related loss of lean muscle mass reduces baseline
creatinine production.
Rationale: Creatinine is an endogenous waste product of skeletal muscle breakdown.
Because older adults naturally experience sarcopenia (loss of lean muscle tissue), they
produce less baseline creatinine. Consequently, an older patient can have significant
renal impairment and a reduced glomerular filtration rate (GFR) while maintaining a
deceptively normal serum creatinine level.
Question 2
The Nurse Practitioner is reviewing the therapeutic profile of an 81-year-old female
patient taking multiple highly protein-bound medications, including warfarin and
,phenytoin. The patient's recent labs reveal a mild decline in serum albumin (3.1 g/dL).
What is the primary pharmacokinetic consequence of this change?
• (A) The liver will increase its metabolic clearance of both drugs, eliminating them
faster.
• (B) The active, unbound fraction of these medications will increase, raising the
risk of toxicity.
• (C) The medications will bind irreversibly to adipose tissue, delaying their onset
of action.
• (D) Intestinal absorption of water-soluble compounds will double.
Correct Answer: (B) The active, unbound fraction of these medications will
increase, raising the risk of toxicity.
Rationale: Serum albumin levels frequently decline in older adults due to malnutrition,
chronic inflammation, or decreased hepatic synthesis. When albumin levels are low,
there are fewer binding sites available for highly protein-bound drugs. This results in a
higher concentration of free (unbound) drug in the bloodstream, which is the
pharmacologically active form that exerts therapeutic or toxic effects.
Question 3
An 84-year-old male is prescribed a lipophilic medication for long-term management of
a neurological condition. Based on age-related changes in body composition, how
should the Nurse Practitioner expect the volume of distribution (\(V_{d}\)) and
elimination half-life (\(t_{1/2}\)) of this drug to change?
• (A) Decreased \(V_{d}\) and shortened \(t_{1/2}\).
• (B) Increased \(V_{d}\) and shortened \(t_{1/2}\).
• (C) Decreased \(V_{d}\) and prolonged \(t_{1/2}\).
• (D) Increased \(V_{d}\) and prolonged \(t_{1/2}\).
Correct Answer: (D) Increased \(V_{d}\) and prolonged \(t_{1/2}\).
,Rationale: As humans age, total body water and lean muscle mass decrease, while the
percentage of total body fat increases. Lipophilic (fat-soluble) medications distribute
widely into this expanded adipose tissue reservoir, significantly increasing their volume
of distribution (\(V_{d}\)). Because the drug is sequestered in fat cells, it takes longer for
the liver and kidneys to clear it, resulting in a prolonged elimination half-life (\(t_{1/2}\)).
Question 4
A 76-year-old female patient with a history of persistent insomnia requests a
prescription for a sedative. According to the Beers Criteria guidelines, which medication
should the Nurse Practitioner avoid due to its high risk of causing cognitive impairment,
delirium, and falls in older adults?
• (A) Melatonin
• (B) Diazepam
• (C) Zolpidem at the lowest effective dose
• (D) Ramelteon
Correct Answer: (B) Diazepam
Rationale: Diazepam is a long-acting benzodiazepine with active metabolites that give it
an exceptionally prolonged half-life in older adults (often exceeding 100 hours). The
Beers Criteria strongly recommends avoiding long-acting benzodiazepines in geriatric
patients because they accumulate in tissue, causing daytime somnolence, cognitive
slowing, delirium, ataxia, and a significantly increased risk of motor vehicle accidents
and hip fractures.
Question 5
A 69-year-old patient presents to the primary care clinic with a sitting blood pressure of
162/74 mmHg. The patient undergoes serial blood pressure monitoring, which confirms
a diagnosis of Isolated Systolic Hypertension (ISH). What underlying pathophysiological
change causes this specific presentation?
, • (A) Excessive production of aldosterone by the adrenal cortex.
• (B) Increased arterial compliance and decreased peripheral vascular resistance.
• (C) Stiffening of the large central arteries due to collagen deposition and loss of
elastin.
• (D) Sustained hyperactivation of the parasympathetic nervous system.
Correct Answer: (C) Stiffening of the large central arteries due to collagen
deposition and loss of elastin.
Rationale: Isolated Systolic Hypertension (systolic BP \(\ge \) 130 mmHg with a diastolic
BP < 80 mmHg) is the most common form of hypertension in older adults. It is primarily
driven by age-related structural changes in the vascular walls, specifically the cross-
linking of collagen and degradation of elastin fibers. This causes structural stiffening of
the aorta and large arteries, preventing them from dampening the high-pressure wave
of ventricular contraction.
Question 6
An 83-year-old male with severe osteoarthritis of the knees has been self-medicating
with over-the-counter naproxen, taking 440 mg twice daily for the past three weeks. For
which serious complications should the Nurse Practitioner screen during this patient's
wellness visit?
• (A) Acute kidney injury, hypertension, and gastrointestinal bleeding.
• (B) Pulmonary fibrosis, hepatic failure, and profound hypocalcemia.
• (C) Metabolic alkalosis, profound hypokalemia, and leukopenia.
• (D) Neuroleptic malignant syndrome and peripheral neuropathy.
Correct Answer: (A) Acute kidney injury, hypertension, and gastrointestinal
bleeding.
Rationale: Nonsteroidal anti-inflammatory drugs (NSAIDs) like naproxen present
significant hazards to older adults. They inhibit cyclooxygenase (COX) enzymes,
reducing cytoprotective prostaglandins in the gastric mucosa (increasing GI
ulceration/bleeding risks) and blocking vasodilatory prostaglandins in the kidneys. This
