1
ATI Proctored Exam Mega Bundle 2025–2026 | 280
NGN Questions & Rationales | A+ Guarantee | Pass All
RN Exams Predictor, Pharm, OB, Mental Health,
Med-Surg & More
PHARMACOLOGY
Question 1
A nurse is administering digoxin to a client with heart failure. Which of
the following findings should cause the nurse to withhold the
medication?
A. Heart rate of 58 bpm
B. Respiratory rate of 22/min
C. Potassium level of 4.2 mEq/L
D. Blood pressure of 132/84 mm Hg
, 2
✅ Correct Answer: A. Heart rate of 58 bpm
Rationale: Digoxin is withheld if the apical pulse is below 60 bpm due to
the risk of bradycardia and cardiac toxicity.
Question 2
A client who is receiving furosemide complains of muscle cramps.
Which lab value should the nurse check first?
A. Sodium
B. Chloride
C. Potassium
D. Hemoglobin
✅ Correct Answer: C. Potassium
Rationale: Furosemide is a loop diuretic that causes potassium loss,
which can lead to muscle cramps, weakness, or arrhythmias.
Question 3
A client taking warfarin is instructed to limit intake of which food?
A. Bananas
, 3
B. Spinach
C. Milk
D. Apples
✅ Correct Answer: B. Spinach
Rationale: Spinach is high in vitamin K, which can decrease the
effectiveness of warfarin by promoting clotting.
Question 4
Which finding indicates lithium toxicity in a client taking lithium
carbonate?
A. Coarse hand tremors
B. Increased appetite
C. Weight loss
D. Euphoria
✅ Correct Answer: A. Coarse hand tremors
Rationale: Coarse tremors, confusion, and GI upset are signs of lithium
toxicity, which typically occurs at levels >1.5 mEq/L.
, 4
Question 5
A nurse is preparing to administer vancomycin IV. Which of the
following actions should be taken to reduce the risk of Red Man
Syndrome?
A. Administer the drug IM
B. Infuse rapidly over 15 minutes
C. Infuse slowly over at least 60 minutes
D. Premedicate with aspirin
✅ Correct Answer: C. Infuse slowly over at least 60 minutes
Rationale: Rapid infusion of vancomycin can lead to Red Man
Syndrome, a histamine reaction causing flushing and hypotension.
Question 6
Which of the following is a contraindication for receiving live attenuated
vaccines like MMR?
A. Pregnancy
B. Age over 18
C. Diabetes
ATI Proctored Exam Mega Bundle 2025–2026 | 280
NGN Questions & Rationales | A+ Guarantee | Pass All
RN Exams Predictor, Pharm, OB, Mental Health,
Med-Surg & More
PHARMACOLOGY
Question 1
A nurse is administering digoxin to a client with heart failure. Which of
the following findings should cause the nurse to withhold the
medication?
A. Heart rate of 58 bpm
B. Respiratory rate of 22/min
C. Potassium level of 4.2 mEq/L
D. Blood pressure of 132/84 mm Hg
, 2
✅ Correct Answer: A. Heart rate of 58 bpm
Rationale: Digoxin is withheld if the apical pulse is below 60 bpm due to
the risk of bradycardia and cardiac toxicity.
Question 2
A client who is receiving furosemide complains of muscle cramps.
Which lab value should the nurse check first?
A. Sodium
B. Chloride
C. Potassium
D. Hemoglobin
✅ Correct Answer: C. Potassium
Rationale: Furosemide is a loop diuretic that causes potassium loss,
which can lead to muscle cramps, weakness, or arrhythmias.
Question 3
A client taking warfarin is instructed to limit intake of which food?
A. Bananas
, 3
B. Spinach
C. Milk
D. Apples
✅ Correct Answer: B. Spinach
Rationale: Spinach is high in vitamin K, which can decrease the
effectiveness of warfarin by promoting clotting.
Question 4
Which finding indicates lithium toxicity in a client taking lithium
carbonate?
A. Coarse hand tremors
B. Increased appetite
C. Weight loss
D. Euphoria
✅ Correct Answer: A. Coarse hand tremors
Rationale: Coarse tremors, confusion, and GI upset are signs of lithium
toxicity, which typically occurs at levels >1.5 mEq/L.
, 4
Question 5
A nurse is preparing to administer vancomycin IV. Which of the
following actions should be taken to reduce the risk of Red Man
Syndrome?
A. Administer the drug IM
B. Infuse rapidly over 15 minutes
C. Infuse slowly over at least 60 minutes
D. Premedicate with aspirin
✅ Correct Answer: C. Infuse slowly over at least 60 minutes
Rationale: Rapid infusion of vancomycin can lead to Red Man
Syndrome, a histamine reaction causing flushing and hypotension.
Question 6
Which of the following is a contraindication for receiving live attenuated
vaccines like MMR?
A. Pregnancy
B. Age over 18
C. Diabetes
