Which medication is indicated for suppression of cough? (Select all that apply)

Benzonatate [Tessalon]

Guaifenesin [Mucinex]

Dextromethorphan [Robitussin]

Codeine

Answer and Explanation

Correct Answer : A,C,D

Choice A reason: Benzonatate suppresses cough by anesthetizing stretch receptors in the respiratory tract, reducing the cough reflex. It acts locally on nerve endings in the lungs and pleura, effectively decreasing cough frequency without systemic opioid effects, making it an appropriate choice for cough suppression.

Choice B reason: Guaifenesin is an expectorant, promoting mucus clearance by thinning secretions, not suppressing the cough reflex. It facilitates productive coughing rather than inhibiting it, making it ineffective for cough suppression and an incorrect choice for this indication in managing cough symptoms.

Choice C reason: Dextromethorphan suppresses cough by acting on the medulla’s cough center, reducing the urge to cough. As a non-opioid antitussive, it effectively controls non-productive cough without significant respiratory depression, making it a suitable and correct choice for cough suppression in various conditions.

Choice D reason: Codeine, an opioid, suppresses cough by acting on the central nervous system’s cough center, reducing reflex activity. It’s effective for non-productive cough but carries risks of sedation and dependency, making it a correct but cautiously used choice for cough suppression.

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Correct Answer is B

Explanation

Choice A reason: Beta blockers decrease renin release, reducing angiotensin II and aldosterone, which lowers blood pressure. This statement is accurate, reflecting correct understanding, so it does not indicate a need for further teaching.

Choice B reason: Beta blockers do not primarily decrease peripheral vascular resistance; they reduce heart rate and contractility. Peripheral resistance is more affected by alpha blockers or vasodilators, so this incorrect statement indicates a need for further teaching.

Choice C reason: Beta blockers reduce heart rate and myocardial contractility, decreasing cardiac output and blood pressure. This statement is correct, showing proper understanding, so it does not require additional teaching.

Choice D reason: While beta blockers do not directly block angiotensin II, they reduce its production by decreasing renin. The statement is imprecise but not entirely wrong, making it less indicative of a teaching need than choice B.

A. Bananas B. Leafy green foods C. Alcoholic beverages D. Dairy products

Correct Answer is C

Explanation

Choice A reason: Bananas do not interact with acetaminophen. They are a potassium-rich food without impact on acetaminophen metabolism or hepatotoxicity. Acetaminophen’s primary risk is liver damage, especially with alcohol or overdose, making bananas irrelevant to its safe use, so this choice is incorrect.

Choice B reason: Leafy green foods, rich in vitamin K, may affect anticoagulants like warfarin but have no significant interaction with acetaminophen. They don’t influence acetaminophen’s metabolism or liver toxicity risk, making this choice irrelevant for patient instructions regarding safe acetaminophen use post-surgery.

Choice C reason: Alcohol increases acetaminophen’s hepatotoxicity by inducing CYP2E1 enzymes, which metabolize acetaminophen into toxic NAPQI, depleting liver glutathione and causing damage. Avoiding alcohol prevents severe liver injury, especially post-surgery when liver function is critical, making this the correct choice for patient safety.

Choice D reason: Dairy products do not interact with acetaminophen’s metabolism or toxicity. They may slow gastric emptying, slightly delaying absorption, but this isn’t a significant concern. Acetaminophen’s primary risk is hepatotoxicity, unaffected by dairy, making this choice incorrect for discharge instructions.

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Which medication is indicated for suppression of cough? (Select all that apply)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is discussing how beta blockers work to decrease blood pressure with a nursing student. Which statement by the student indicates a need for further teaching?

Correct Answer is B

Explanation

A nurse provides discharge instructions for a patient who is taking acetaminophen [Tylenol] after surgery. The nurse should instruct the patient to avoid which product while taking acetaminophen?

Correct Answer is C

Explanation

Two nurses are discussing the theories of drug-receptor interaction. Which statements are true regarding the affinity of a drug and for its receptor? (Select all that apply)

A patient with a history of hypertension is admitted for a procedure. If the patient’s blood pressure decreases, which clinical manifestation would the nurse expect to see?

The nurse is preparing to give a drug that will prevent receptor activation. Which term would describe this drug?

A patient with type 1 diabetes reports mixing NPH and regular insulin to allow for one injection. The nurse knows:

A patient who stops taking an ACE inhibitor because of its side effects will begin taking an angiotensin II receptor blocker (ARB) medication. Which side effect of ACE inhibitors will not occur with an ARB medication?

A nurse teaches a patient who takes daily low-dose aspirin for protection against myocardial infarction and stroke to avoid also taking which medication?

A woman in labor receives meperidine (Demerol) for pain. The nurse caring for the infant will observe the infant closely for:

The nurse assesses a patient who takes ibuprofen [Advil] on a regular basis. Which finding would indicate a severe adverse effect of ibuprofen therapy?