, Question 1
A patient is taking two prescription medications that both cause bradycardia. The nurse should
monitor the patient for which type of effect?
A. An increased therapeutic effect
B. An increased adverse effect
C. A reduced therapeutic effect
D. A reduced adverse effect
Correct Answer: B
Rationale: When two medications that both cause the same adverse effect (bradycardia) are taken
together, the result is an increased adverse effect due to additive pharmacodynamics. The nurse
should monitor the patient closely for excessive bradycardia, which could compromise cardiac
output.
Question 2
Which individual is at the highest risk for a drug-drug interaction?
A. A toddler who is prescribed two antibiotics for a serious infection
B. An adolescent who takes over-the-counter medications for menstrual cramping
C. An adult who takes eight prescription medications for a chronic condition
D. An older adult who takes two prescription medications and a dietary supplement for anxiety
Correct Answer: C
Rationale: The risk of drug-drug interactions increases with the number of medications a patient
takes. An adult taking eight prescription medications has the highest number of drugs, which
exponentially increases the potential for interactions among them.
Question 3
The nurse cares for a patient who is taking a calcium channel blocker for hypertension. The nurse
should be most concerned if the patient makes which statement?
A. "I take my medication with a glass of water."
B. "I eat foods high in fiber to prevent constipation."
A patient is taking two prescription medications that both cause bradycardia. The nurse should
monitor the patient for which type of effect?
A. An increased therapeutic effect
B. An increased adverse effect
C. A reduced therapeutic effect
D. A reduced adverse effect
Correct Answer: B
Rationale: When two medications that both cause the same adverse effect (bradycardia) are taken
together, the result is an increased adverse effect due to additive pharmacodynamics. The nurse
should monitor the patient closely for excessive bradycardia, which could compromise cardiac
output.
Question 2
Which individual is at the highest risk for a drug-drug interaction?
A. A toddler who is prescribed two antibiotics for a serious infection
B. An adolescent who takes over-the-counter medications for menstrual cramping
C. An adult who takes eight prescription medications for a chronic condition
D. An older adult who takes two prescription medications and a dietary supplement for anxiety
Correct Answer: C
Rationale: The risk of drug-drug interactions increases with the number of medications a patient
takes. An adult taking eight prescription medications has the highest number of drugs, which
exponentially increases the potential for interactions among them.
Question 3
The nurse cares for a patient who is taking a calcium channel blocker for hypertension. The nurse
should be most concerned if the patient makes which statement?
A. "I take my medication with a glass of water."
B. "I eat foods high in fiber to prevent constipation."
