A nurse is administering tetracycline to a client who has acne vulgaris. The client tells the nurse that he usually takes calcium supplements with his meals.
How should the nurse respond?
“You can continue to take calcium supplements as long as you take them with food.”
“You should avoid taking calcium supplements while you are on tetracycline therapy.”
“You can take calcium supplements with tetracycline as long as you drink plenty of water.”
“You should take calcium supplements at least 2 hours before or after tetracycline."
The Correct Answer is D
You should take calcium supplements at least 2 hours before or after tetracycline. This is because calcium can interfere with the absorption of tetracycline and reduce its effectiveness.
Choice A is wrong because taking calcium supplements with food does not prevent the interaction with tetracycline.
Choice B is wrong because avoiding calcium supplements altogether is not necessary and may deprive the client of an important nutrient.
Choice C is wrong because drinking plenty of water does not prevent the interaction with tetracycline either.
Normal ranges for calcium are 8.5 to 10.2 mg/dL for adults. Tetracycline is an antibiotic that is used to treat acne vulgaris and other infections. It should be taken on an empty stomach with a full glass of water.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
It will increase the serum levels and half-life of penicillin.Probenecid inhibits the renal excretion of penicillin, which prolongs its action and increases its concentration in the blood. This can be beneficial for treating severe infections, but it also increases the risk of adverse effects and toxicity.
Choice B is wrong because probenecid does not affect the absorption or bioavailability of penicillin.
These factors depend on the route of administration and the formulation of the drug.
Choice C is wrong because probenecid does not enhance the bactericidal activity of penicillin.
Penicillin kills bacteria by interfering with their cell wall synthesis, which is independent of probenecid.
Choice D is wrong because probenecid does not reduce the risk of allergic reaction to penicillin.In fact, probenecid may increase the risk of hypersensitivity reactions by prolonging the exposure to penicillin.
Normal ranges for serum levels and half-life of penicillin vary depending on the type and dose of penicillin, but generally they are between 2 to 40 mcg/mL and 0.5 to 1.5 hours, respectively.
Correct Answer is D
Explanation
You should take calcium supplements at least 2 hours before or after tetracycline.This is because calcium can interfere with the absorption of tetracycline and reduce its effectiveness.
Choice A is wrong because taking calcium supplements with food does not prevent the interaction with tetracycline.
Choice B is wrong because avoiding calcium supplements altogether is not necessary and may deprive the client of an important nutrient.
Choice C is wrong because drinking plenty of water does not prevent the interaction with tetracycline either.
Normal ranges for calcium are 8.5 to 10.2 mg/dL for adults.Tetracycline is an antibiotic that is used to treat acne vulgaris and other infections.It should be taken on an empty stomach with a full glass of water.
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