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 A
Explanation
Choice A rationale
True. Xanthine derivatives like theophylline can cause serious adverse effects, including brain damage, when blood levels become too high. It is critical to monitor theophylline levels to prevent toxicity and associated neurological complications.
Choice B rationale
False. If xanthine levels remain within therapeutic ranges, the risk of brain damage is minimized. However, this statement is incorrect as it does not acknowledge the potential severity of the adverse effects linked to elevated theophylline levels.
Correct Answer is D
Explanation
Choice A rationale
Deoxygenated blood from the lungs would not flow to the left atrium or through the pulmonary artery.
Choice B rationale
Deoxygenated blood from the lungs would not enter the right atrium or flow through the pulmonary artery.
Choice C rationale
Oxygenated blood from the lungs does not enter the right atrium through the pulmonary veins.
Choice D rationale
Correct, oxygenated blood from the lungs enters the left atrium through the pulmonary veins.
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