ATI RN
ATI Nurs 180 Pharmacology Exam Questions
Extract:
Question 1 of 5
The nurse is preparing to administer digoxin (Lanoxin) to a client experiencing atrial fibrillation. Which of the following electrolyte imbalances would the nurse assess to reduce the incidence of toxicity with digoxin (Lanoxin)?
Correct Answer: B
Rationale: The correct answer is B: Hypokalemia. Digoxin toxicity is more likely to occur in patients with low potassium levels because potassium competes with digoxin for binding sites on the Na+/K+ ATPase pump. Low potassium levels can lead to increased digoxin binding, resulting in toxicity. Assessing and correcting hypokalemia before administering digoxin can help reduce the risk of toxicity.
Incorrect choices:
A: Hypocalcemia does not directly affect digoxin toxicity.
C: Hyperkalemia actually reduces the risk of digoxin toxicity.
D: Hypernatremia is not directly related to digoxin toxicity.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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