What is the action of the thiazide diuretic?
Blocks the sodium pump.
Block the chloride pump.
Blocks the carbonic anhydrase pump.
Blocks the potassium pump.
The Correct Answer is B
Choice A rationale
Thiazide diuretics do not block the sodium pump. They act primarily on the distal convoluted tubule in the kidneys.
Choice B rationale
Thiazide diuretics block the chloride pump in the distal convoluted tubule, preventing the reabsorption of sodium and chloride, leading to increased urine output and decreased blood pressure.
Choice C rationale
Thiazide diuretics do not block the carbonic anhydrase pump. This action is associated with carbonic anhydrase inhibitors.
Choice D rationale
Thiazide diuretics do not block the potassium pump. They can cause potassium loss as a side effect, but this is not their primary mechanism of action.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Acetaminophen is an analgesic and antipyretic but does not have antitussive properties.
Choice B rationale
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that provides analgesic effects but does not have antitussive properties.
Choice C rationale
Aspirin is an analgesic and anti-inflammatory medication but does not have antitussive properties.
Choice D rationale
Codeine is an opioid that provides both analgesic and antitussive effects. It is commonly used to treat mild to moderate pain and to suppress cough.
Correct Answer is C
Explanation
Choice A rationale
Sumatriptan does not cause vasodilation of peripheral blood vessels. Instead, it has vasoconstrictive properties.
Choice B rationale
Sumatriptan does not depress pain response in the central nervous system. Its primary action is on the cranial blood vessels.
Choice C rationale
Sumatriptan is a selective serotonin receptor agonist that causes vasoconstriction of cranial blood vessels, relieving migraine headaches.
Choice D rationale
Sumatriptan does not bind to acetylcholine receptors or prevent nerve transmission. It specifically targets serotonin receptors in cranial blood vessels.
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