ATI LPN
ATI PN Pharmacology 2020 Exam 2 Questions
Extract:
Question 1 of 5
A nurse is talking with a client who has been taking levothyroxine to treat hypothyroidism. The nurse should instruct the client to avoid taking which of the following over-the-counter medications within 4 hr of taking levothyroxine?
Correct Answer: A
Rationale: The correct answer is A: Calcium supplements. Levothyroxine absorption can be affected by calcium, thus it is important to avoid taking calcium supplements within 4 hours of taking levothyroxine. Calcium can interfere with the absorption of levothyroxine in the gastrointestinal tract, reducing its effectiveness. This interaction can lead to suboptimal treatment outcomes for hypothyroidism. Avoiding calcium supplements for at least 4 hours after taking levothyroxine ensures proper absorption of the medication.
Summary of incorrect choices:
B: Bulk-forming laxatives - Bulk-forming laxatives do not directly interfere with levothyroxine absorption.
C: Fish oil supplements - Fish oil supplements do not interfere with levothyroxine absorption.
D: Oral antihistamines - Oral antihistamines do not interfere with levothyroxine absorption.
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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