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
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Loperamide (Imodium): This is an anti-diarrheal medication and does not protect mucosal ulcers.
B. Cimetidine (Tagamet HB): Cimetidine is an H2 blocker used to reduce stomach acid, but it does not form a protective barrier like sucralfate.
C. Docusate sodium (Colace): This is a stool softener and is not used for protecting gastric ulcers.
D. Sucralfate (Carafate): Sucralfate is a mucosal protectant that binds to the ulcer and creates a protective barrier, preventing further injury from stomach acid and pepsin.
Correct Answer is C
Explanation
A. Calcium carbonate does not treat hypoglycemia. It is used to address low calcium levels, not blood sugar levels.
B. Calcium carbonate is not used to treat hypothyroidism. Hypothyroidism is treated with thyroid hormone replacement therapy (e.g., levothyroxine).
C. Calcium carbonate is commonly used to treat hypocalcemia (low calcium levels in the blood) and to prevent bone loss in conditions such as osteoporosis.
D. Calcium carbonate is not used to treat hyperkalemia (high potassium levels). Treatments for hyperkalemia may include medications like sodium bicarbonate or calcium gluconate, but not calcium carbonate.
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