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Which of the following statements is true about medications that are AGONISTS?

Medications that block the usual receptor activity that endogenous compounds regulate or the receptor activity of other medications.

Medications that bind to or mimic the receptor activity that endogenous compounds regulate

Medications that bind or block receptor activity with Limited affinity to receptor sites.

None of the above

Answer and Explanation

The Correct Answer is B

A.   This describes an antagonist, not an agonist.
B.   Agonists are medications that bind to receptors and mimic the actions of naturally occurring substances in the body.
C.   This is incorrect because agonists generally have a high affinity for their receptors and activate them.
D.   This is incorrect, as option B accurately describes an agonist.

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Correct Answer is C

Explanation

A. An allergic reaction: An allergic reaction is an immune response, not the reduction of drug effect.
B. A synergistic effect: A synergistic effect occurs when two drugs enhance each other's effects.
C. An antagonistic effect: An antagonistic effect occurs when one drug reduces or counteracts the effect of another drug.
D. None of the above: The correct term is "antagonistic effect."

A. Expect increased swelling of the ankles. B. Fluid intake should be limited C. Take this medication at bedtime. D. Take this medication with food.

Correct Answer is D

Explanation

A. Hydrochlorothiazide does not typically cause increased swelling of the ankles. It is a diuretic and helps reduce fluid retention.
B. Fluid intake should not be restricted unless specifically indicated. Diuretics like hydrochlorothiazide increase urine output, and adequate fluid intake is generally encouraged to prevent dehydration.
C. Taking hydrochlorothiazide at bedtime is not recommended due to the increased urination, which may disrupt sleep.
D. Taking this medication with food can help prevent gastrointestinal upset, which is a common side effect of hydrochlorothiazide.

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Which of the following statements is true about medications that are AGONISTS?

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Naxlex Comprehensive Predictor Exams

The nurse is educating a client about taking a tetracycline along with an antacid. The nurse explains to the client not to take these two medications because the antacid can reduce the absorption of the tetracycline. When one drug reduces the effect of another, it is:

Correct Answer is C

Explanation

A nurse is providing information to a client who has a new prescription for hydrochlorothiazide (Hydro Diuril). Which of the following information should the nurse include?

Correct Answer is D

Explanation

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