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?
Fish oil supplements.
Calcium supplements.
Bulk-forming laxatives.
Oral antihistamines.
The Correct Answer is B
Choice A rationale:
Fish oil supplements do not have a known interaction with levothyroxine.
Choice B rationale:
Calcium supplements can interfere with the absorption of levothyroxine. They should be taken at least four hours apart from levothyroxine.
Choice C rationale:
While bulk-forming laxatives can interfere with the absorption of some medications, there’s no specific evidence they interfere with levothyroxine.
Choice D rationale:
Oral antihistamines do not have a known interaction with levothyroxine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Levalbuterol is a bronchodilator that relaxes muscles in the airways and increases air flow to the lungs. Therefore, a decrease in wheezing is a therapeutic effect of the medication, making this the correct choice.
Choice B rationale:
While levalbuterol can cause an increase in respiratory rate as a side effect, it is not considered a therapeutic effect of the medication. The primary goal of levalbuterol is to improve breathing by relaxing the muscles of the airways, not to increase respiratory rate.
Choice C rationale:
Levalbuterol does not directly affect nausea. It is primarily used to treat conditions related to breathing such as asthma and chronic obstructive pulmonary disease.
Choice D rationale:
An increased heart rate is a potential side effect of levalbuterol, not a therapeutic effect.
Correct Answer is C
Explanation
Choice A rationale:
Atenolol is a beta-blocker used to treat high blood pressure and heart-related conditions. It’s not used in the treatment of alcohol use disorder.
Choice B rationale:
Lorazepam is a benzodiazepine used to treat anxiety disorders. It can be used in the acute management of alcohol withdrawal, but it doesn’t assist in maintaining abstinence.
Choice C rationale:
Disulfiram is a medication used to support the treatment of chronic alcoholism by producing an acute sensitivity to ethanol (drinking alcohol) If alcohol is consumed when a patient has received disulfiram treatment, they suffer from a disulfiram-alcohol reaction, which can include symptoms like flushing, nausea, vomiting, and headaches. This aversive effect aids in discouraging the consumption of alcohol.
Choice D rationale:
Carbamazepine is an anticonvulsant and mood stabilizer medication used primarily in the treatment of epilepsy and bipolar disorder, not for alcohol use disorder.
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