Prior to elective surgery, a patient taking warfarin should receive which instruction regarding warfarin therapy?

Correct Answer: D

Rationale: The correct answer is D because stopping warfarin one week before surgery reduces the risk of excessive bleeding during the procedure. Warfarin's anticoagulant effect can persist for several days, so stopping it earlier allows time for its effects to diminish. Choice A is incorrect because continuing warfarin until the day of surgery increases bleeding risk. Choice B is incorrect as stopping warfarin only three days before surgery may not provide enough time for the anticoagulant effect to wear off. Choice C is incorrect as aspirin is not a suitable substitute for warfarin in most cases.

Correct Answer: B

Rationale: The correct answer is B: Relieve bronchospasm. Short-acting beta2-agonists (SABAs) like albuterol act by stimulating beta2 receptors in the airway smooth muscle, leading to bronchodilation and relieving bronchospasm. This helps to quickly open up the airways during an acute asthma exacerbation. Choice A is incorrect because SABAs do not directly reduce inflammation. Choice C is incorrect as SABAs do not affect respiratory secretions. Choice D is incorrect as SABAs do not suppress cough but rather target bronchospasm.

Correct Answer: B

Rationale: Step 1: Statins can cause muscle pain or weakness as a side effect. Step 2: Prompt reporting of muscle pain or weakness is crucial to address potential myopathy or rhabdomyolysis. Step 3: Nurse should educate patient to report any muscle symptoms promptly for timely intervention and prevention of complications. Summary: Option B is correct as it emphasizes the importance of monitoring and reporting potential side effects of statins. Options A, C, and D are incorrect as taking with food, increasing grapefruit juice intake, and avoiding potassium-rich foods are not relevant considerations for statin therapy.

Correct Answer: B

Rationale: The correct answer is B: Take on an empty stomach for best absorption. Ferrous sulfate is best absorbed on an empty stomach to maximize its effectiveness. When taken with food or dairy products (Choice A), the absorption of iron is reduced. Vitamin C actually enhances the absorption of iron, so avoiding it (Choice C) is not recommended. Taking the medication before bedtime (Choice D) may lead to gastrointestinal side effects and is not optimal for absorption.

Correct Answer: C

Rationale: The correct answer is C: Report any visual disturbances. This is important because digoxin can cause visual disturbances, such as blurred or yellow-tinted vision, which may indicate toxicity. By reporting these symptoms promptly, the nurse can prevent serious complications. A: Taking an extra dose if a dose is missed can lead to overdose and toxicity. B: Avoiding high-potassium foods is important for patients taking potassium-sparing diuretics, not digoxin. D: Stopping the medication if the pulse is normal is incorrect as it should be taken as prescribed for heart failure management.