A patient is taking guaifenesin as part of treatment for a sinus infection. Which instruction will the nurse include during patient teaching?
Report symptoms that last longer than 2 days.
Report clear-colored sputum to the prescriber.
Avoid driving a car or operating heavy machinery because of the sedating effects.
Increase fluid intake to help loosen and liquefy secretions.
The Correct Answer is D
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.
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 C
Explanation
Choice A reason: This is incorrect because lispro insulin is a rapid-acting insulin that does not need to be administered with another type of insulin. However, the patient may need a long-acting or intermediate-acting insulin to provide basal coverage throughout the day.
Choice B reason: This is incorrect because lispro insulin has a peak action of 30 to 90 min after the injection, which means that the patient is at the highest risk of hypoglycemia during this time. The nurse should assess for hypoglycemia more frequently than 4 hr after the injection.
Choice C reason: This is correct because lispro insulin has a fast onset of action of 15 to 30 min after the injection, which means that the patient should eat a meal within 15 min of the injection to prevent hypoglycemia.
Choice D reason: This is incorrect because polyuria is a sign of hyperglycemia, not hypoglycemia. The nurse should monitor for polyuria before the insulin injection, as it may indicate that the patient's blood glucose level is high.
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