Nursing Core Concepts | Verified Sample Questions &
Clinical Rationales 2026
Ace your first graduate nursing evaluation with this comprehensive NURS 5461 Quiz 1
practice test bank featuring verified sample questions and core concepts. Master critical
advanced practice domains, including evidence-based primary care interventions,
health promotion frameworks, advanced epidemiological concepts, and clinical
decision-making models. Every verified question is paired with a high-yield clinical
rationale designed to sharpen your diagnostic reasoning skills and guarantee a top
score on your quiz.
Question 1
A 74-year-old patient is prescribed a medication that is highly protein-bound. The
patient has a serum albumin level of 2.1 g/dL. What pharmacokinetic change should the
nurse anticipate?
A) Decreased free drug concentration
B) Increased free drug concentration
C) No change in drug effect
D) Decreased drug distribution
Correct Answer: B) Increased free drug concentration
Rationale: Albumin is the primary binding protein for acidic drugs. When albumin is low
(hypoalbuminemia), more free (unbound) drug is available in the bloodstream, increasing
the risk of toxicity. Normal albumin is 3.5-5.0 g/dL.
Question 2
Which age-related change in the gastrointestinal system most significantly affects oral
medication absorption in older adults?
A) Increased gastric pH and decreased gastric motility
B) Increased gastric acid production
,C) Decreased intestinal surface area
D) Increased splanchnic blood flow
Correct Answer: A) Increased gastric pH and decreased gastric motility
Rationale: Aging reduces gastric acid secretion (increased pH) and slows gastric emptying.
This can alter the dissolution and absorption of medications, particularly those requiring
an acidic environment.
Question 3
A 68-year-old patient is started on a new medication that undergoes extensive first-pass
metabolism. Which age-related change would most significantly increase the
bioavailability of this drug?
A) Increased hepatic blood flow
B) Decreased hepatic blood flow
C) Increased renal clearance
D) Decreased gastric pH
Correct Answer: B) Decreased hepatic blood flow
Rationale: Hepatic blood flow decreases by 20-40% with aging. This reduces first-pass
metabolism, leading to increased bioavailability of drugs that undergo extensive hepatic
extraction.
Question 4
Which of the following best describes the concept of "homeostenosis" in aging?
A) The progressive increase in physiological reserve
B) The reduced ability to maintain homeostasis under stress
,C) The complete loss of organ function
D) The increased efficiency of compensatory mechanisms
Correct Answer: B) The reduced ability to maintain homeostasis under stress
Rationale: Homeostenosis refers to the age-related narrowing of physiological reserve,
reducing the ability to adapt to stressors such as illness, surgery, or medication changes.
This explains why older adults decompensate more rapidly.
Question 5
A 78-year-old patient is being evaluated for falls. Which of the following is the MOST
modifiable risk factor?
A) Age over 75
B) Female gender
C) Polypharmacy (>4 medications)
D) History of previous fall
Correct Answer: C) Polypharmacy (>4 medications)
Rationale: Polypharmacy is a significant and modifiable risk factor for falls in older adults.
Deprescribing and medication review can reduce fall risk. Age, gender, and fall history are
non-modifiable.
Question 6
Which of the following is the recommended first-line treatment for an 82-year-old
patient with moderate Alzheimer's disease?
A) Donepezil (Aricept)
B) Memantine (Namenda)
, C) Haloperidol (Haldol)
D) Lorazepam (Ativan)
Correct Answer: B) Memantine (Namenda)
Rationale: Memantine is an NMDA receptor antagonist approved for moderate-to-severe
Alzheimer's disease. Donepezil is used for mild-to-moderate disease. Antipsychotics and
benzodiazepines should be avoided due to increased fall and mortality risk.
Question 7
A 70-year-old patient with Parkinson's disease is started on carbidopa-levodopa. Which
instruction should the nurse include?
A) "Take this medication with a high-protein meal."
B) "Take this medication on an empty stomach, 30 minutes before meals."
C) "Take this medication at bedtime."
D) "Take this medication only when symptoms are severe."
Correct Answer: B) "Take this medication on an empty stomach, 30 minutes before
meals."
Rationale: High-protein meals can interfere with levodopa absorption and transport across
the blood-brain barrier. Taking it on an empty stomach improves absorption. Patients
should also avoid taking it with iron supplements.
Question 8
A 76-year-old patient with atrial fibrillation is prescribed warfarin. The nurse should
monitor for which of the following age-related concerns?
A) Increased risk of bleeding due to decreased vitamin K intake
B) Decreased risk of bleeding due to increased clotting factors