A gardener needs a decongestant because of seasonal allergy problems and asks the nurse whether he should take an oral form or a nasal spray. Which of these is a benefit of orally administered decongestants?
Immediate onset
Absence of rebound congestion
Shorter duration
More potent effect
The Correct Answer is B
Choice A reason: This is incorrect because orally administered decongestants do not have an immediate onset. They take longer to act than nasal sprays because they have to be absorbed through the gastrointestinal tract. Nasal sprays act directly on the nasal mucosa and have a faster onset.
Choice B reason: This is correct because orally administered decongestants do not cause rebound congestion. Rebound congestion is a condition in which the nasal passages become more swollen and congested after the effect of the nasal spray wears off. This can lead to overuse and dependence on the nasal spray. Orally administered decongestants do not have this effect because they act systemically and not locally.
Choice C reason: This is incorrect because orally administered decongestants do not have a shorter duration. They have a longer duration than nasal sprays because they are metabolized more slowly by the liver. Nasal sprays have a shorter duration because they are eliminated more quickly by the nasal mucosa.
Choice D reason: This is incorrect because orally administered decongestants are not more potent than nasal sprays. They have a similar potency, but they have a different mechanism of action. Orally administered decongestants act on the alpha-adrenergic receptors in the blood vessels, causing vasoconstriction and reducing congestion. Nasal sprays act on the beta-adrenergic receptors in the bronchial smooth muscle, causing bronchodilation and improving airflow.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Dextromethorphan is a cough suppressant that does not affect blood glucose levels. It is safe to use for clients with diabetes.
Choice B reason: Prednisone is a corticosteroid that can cause glucose intolerance by increasing glucose production and decreasing insulin sensitivity. It can worsen hyperglycemia and increase the risk of diabetic complications.
Choice C reason: Atorvastatin is a statin that lowers cholesterol levels and reduces the risk of cardiovascular disease. It does not cause glucose intolerance and may have a beneficial effect on glycemic control.
Choice D reason: Cimetidine is a histamine-2 receptor antagonist that reduces stomach acid production and treats ulcers and gastroesophageal reflux disease. It does not cause glucose intolerance and has no significant interaction with diabetes medications.
Correct Answer is D
Explanation
Choice A reason: This is incorrect because reporting symptoms that last longer than 2 days is not specific to guaifenesin. This is a general instruction for any patient with a sinus infection, regardless of the medication they are taking.
Choice B reason: This is incorrect because reporting clear-colored sputum to the prescriber is not necessary. Clear-colored sputum indicates that the infection is improving and the mucus is thinning. This is a desired effect of guaifenesin, not a problem that needs to be reported.
Choice C reason: This is incorrect because guaifenesin does not have sedating effects. Guaifenesin is an expectorant that helps to break up and expel mucus from the respiratory tract. It does not cause drowsiness or impair the ability to drive or operate machinery.
Choice D reason: This is correct because increasing fluid intake is an important instruction for a patient taking guaifenesin. Fluids help to hydrate the body and thin the mucus, making it easier to cough up and clear the sinuses. Fluids also help to prevent dehydration and dryness of the mucous membranes.
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