NURS 6521 ADVANCED
PHARMACOLOGY: LIFESPAN AND
SPECIAL POPULATIONS. (VERIFIED
ANSWERS) QUESTIONS WITH
ANSWERS: WALDEN UNIVERSITY
1. Which physiological change in geriatric patients leads to a higher concentration of water-
soluble drugs?
A. Increased total body water
B. Decreased body fat percentage
C. Increased lean body mass
D. Decreased total body water
Answer: D
Conceptual Explanation: Geriatric patients experience a decrease in total body water,
which causes water-soluble drugs (like digoxin) to have a smaller volume of distribution,
leading to higher serum concentrations.
2. A neonate’s gastric pH is higher (more alkaline) than an adult’s. How does this affect the
absorption of acid-labile drugs like Penicillin G?
A. Absorption is significantly decreased
,B. Absorption remains unchanged
C. Absorption is significantly increased
D. The drug is immediately neutralized and excreted
Answer: C
Conceptual Explanation: Because neonates have a higher gastric pH, acid-labile drugs
(which are normally destroyed by stomach acid) are absorbed more efficiently.
3. According to the Beers Criteria, why should long-acting benzodiazepines like Diazepam be
avoided in the elderly?
A. Prolonged half-life and increased risk of falls/fractures
B. Rapid metabolism leading to subtherapeutic levels
C. Increased risk of paradoxical hypertension
D. Decreased sensitivity of GABA receptors
Answer: A
Conceptual Explanation: Older adults have increased sensitivity to benzodiazepines and
decreased metabolism of long-acting agents, significantly increasing the risk of cognitive
impairment, falls, and fractures.
4. Which pharmacokinetic process is most significantly altered in a patient with third-
trimester pregnancy due to increased plasma volume?
A. Drug Distribution
, B. Gastric Emptying
C. Biliary Excretion
D. Phase II Metabolism
Answer: A
Conceptual Explanation: Total body water and plasma volume increase by up to 50% in
pregnancy, which increases the volume of distribution for many drugs, potentially
requiring dosage adjustments.
5. Why is the use of Tetracyclines contraindicated in children under the age of 8?
A. Risk of premature epiphyseal closure
B. Potential for acute renal failure
C. Increased risk of Reye’s Syndrome
D. Permanent staining of deciduous and permanent teeth
Answer: D
Conceptual Explanation: Tetracyclines bind to calcium in developing teeth and bones,
leading to permanent tooth discoloration and potential enamel hypoplasia in young
children.
6. A 75-year-old patient has a ‘normal’ serum creatinine of 0.8 mg/dL. Why might this value
be misleading regarding renal function?
A. Serum creatinine increases with age regardless of function
PHARMACOLOGY: LIFESPAN AND
SPECIAL POPULATIONS. (VERIFIED
ANSWERS) QUESTIONS WITH
ANSWERS: WALDEN UNIVERSITY
1. Which physiological change in geriatric patients leads to a higher concentration of water-
soluble drugs?
A. Increased total body water
B. Decreased body fat percentage
C. Increased lean body mass
D. Decreased total body water
Answer: D
Conceptual Explanation: Geriatric patients experience a decrease in total body water,
which causes water-soluble drugs (like digoxin) to have a smaller volume of distribution,
leading to higher serum concentrations.
2. A neonate’s gastric pH is higher (more alkaline) than an adult’s. How does this affect the
absorption of acid-labile drugs like Penicillin G?
A. Absorption is significantly decreased
,B. Absorption remains unchanged
C. Absorption is significantly increased
D. The drug is immediately neutralized and excreted
Answer: C
Conceptual Explanation: Because neonates have a higher gastric pH, acid-labile drugs
(which are normally destroyed by stomach acid) are absorbed more efficiently.
3. According to the Beers Criteria, why should long-acting benzodiazepines like Diazepam be
avoided in the elderly?
A. Prolonged half-life and increased risk of falls/fractures
B. Rapid metabolism leading to subtherapeutic levels
C. Increased risk of paradoxical hypertension
D. Decreased sensitivity of GABA receptors
Answer: A
Conceptual Explanation: Older adults have increased sensitivity to benzodiazepines and
decreased metabolism of long-acting agents, significantly increasing the risk of cognitive
impairment, falls, and fractures.
4. Which pharmacokinetic process is most significantly altered in a patient with third-
trimester pregnancy due to increased plasma volume?
A. Drug Distribution
, B. Gastric Emptying
C. Biliary Excretion
D. Phase II Metabolism
Answer: A
Conceptual Explanation: Total body water and plasma volume increase by up to 50% in
pregnancy, which increases the volume of distribution for many drugs, potentially
requiring dosage adjustments.
5. Why is the use of Tetracyclines contraindicated in children under the age of 8?
A. Risk of premature epiphyseal closure
B. Potential for acute renal failure
C. Increased risk of Reye’s Syndrome
D. Permanent staining of deciduous and permanent teeth
Answer: D
Conceptual Explanation: Tetracyclines bind to calcium in developing teeth and bones,
leading to permanent tooth discoloration and potential enamel hypoplasia in young
children.
6. A 75-year-old patient has a ‘normal’ serum creatinine of 0.8 mg/dL. Why might this value
be misleading regarding renal function?
A. Serum creatinine increases with age regardless of function
