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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 A

Explanation

A. Relief of muscle spasms related to muscle injury: Cyclobenzaprine is a muscle relaxant used to relieve muscle spasms and pain from musculoskeletal injuries.
B. Treatment of malignant hyperthermia: Cyclobenzaprine is not used for malignant hyperthermia.
C. Treatment of osteoporosis: Cyclobenzaprine is not used to treat osteoporosis.
D. Treatment of migraines: Cyclobenzaprine is not used for migraines

A. Propylthiouracil (PTU) B. Morphine sulfate (Astramorph) C. Sucralfate (Caralete) D. Metformin (Glucophages)

Correct Answer is A

Explanation

A. Propylthiouracil (PTU): PTU is an antithyroid medication used to treat Graves' disease by inhibiting thyroid hormone production.
B. Morphine sulfate (Astramorph): Morphine is a pain medication and is not used for Graves' disease.
C. Sucralfate (Carafate): Sucralfate is used to treat ulcers, not thyroid disorders.
D. Metformin (Glucophage): Metformin is used for diabetes, not for thyroid disorders.

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

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Naxlex Comprehensive Predictor Exams

A client has been newly prescribed with cyclobenzaprine (Flexeril). Which of the following statements indicates the correct therapeutic use for this medication?

Correct Answer is A

Explanation

A nurse is caring for a client who has a low thyroid stimulating hormone (TSH) level and elevated thyroxine (T4) and triiodothyronine (13) levels. Which of the following medications should the nurse anticipate to treat Graves' disease?

Correct Answer is A

Explanation

A nurse is educating a client about a new prescription for morphine sulfate (Astramorph). Which of the following statement should the nurse include in the teaching about morphine?

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