What drug enhances the output of respiratory tract fluid by reducing the adhesiveness and surface tension of the fluid which facilitates the removal of viscous mucus?
Guaifenesin.
Dextromethorphan.
Acetylcysteine.
Flunisolide.
The Correct Answer is A
Choice A rationale
Guaifenesin is an expectorant that increases the output of respiratory tract fluid by reducing the adhesiveness and surface tension of the mucus, facilitating the removal of viscous mucus.
Choice B rationale
Dextromethorphan is a cough suppressant that works on the cough center in the brain to reduce the urge to cough. It does not enhance the output of respiratory tract fluid.
Choice C rationale
Acetylcysteine is a mucolytic that breaks down the chemical structure of mucus molecules, making the mucus less viscous, but it does not enhance the output of respiratory tract fluid by reducing adhesiveness.
Choice D rationale
Flunisolide is an inhaled corticosteroid used to reduce inflammation in the airways. It does not enhance the output of respiratory tract fluid.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
While a complete blood count (CBC) is an essential lab value for monitoring many conditions and potential side effects, it is not the primary concern when administering high doses of azithromycin, especially with co-administration of acetaminophen. The focus should be on liver function.
Choice B rationale
Urinalysis is useful in diagnosing and monitoring various conditions but is not directly relevant to monitoring the side effects of azithromycin and acetaminophen. These medications do not typically cause urinary abnormalities that would necessitate frequent urinalysis.
Choice C rationale
Electrolytes are not directly affected by azithromycin and acetaminophen use. Although monitoring electrolytes can be essential in broader contexts, these specific medications do not primarily impact electrolyte balance requiring focused monitoring.
Choice D rationale
Liver enzymes are the key lab values to monitor when administering high doses of azithromycin and acetaminophen. Both medications are metabolized by the liver and can cause hepatotoxicity. Monitoring liver enzymes helps in detecting early signs of liver damage and preventing further complications.
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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