A nurse is providing discharge teaching to a client who has a new prescription for warfarin. Which of the following statements indicates an understanding of the teaching?

Correct Answer: C

Rationale: The correct answer is C. Warfarin therapy requires regular blood testing to monitor INR levels and ensure therapeutic dosing. Option A is incorrect because acetaminophen can be taken with warfarin. Option B is not specific to warfarin administration. Option D is incorrect as it does not address the key monitoring requirement of blood testing while on warfarin.

Correct Answer: D

Rationale: The correct answer is D. When a client is prescribed warfarin, they should be educated to report any unusual bleeding or bruising promptly. Choices A, B, and C are incorrect. Avoiding foods rich in vitamin K is not necessary when taking warfarin, as long as intake remains consistent. Warfarin does not need to be taken with meals, and aspirin should not be taken for pain relief due to its blood-thinning effects, which can increase the risk of bleeding when combined with warfarin.

Correct Answer: B

Rationale: The correct answer is B. Potassium levels above 5.0 mEq/L can lead to cardiac issues, and a level of 6.5 mEq/L requires immediate intervention. Hyperkalemia can cause life-threatening cardiac arrhythmias. Choices A, C, and D are within normal ranges and do not require immediate intervention in the context of hemodialysis monitoring.

Correct Answer: B

Rationale: The correct recommendation to prevent hypoglycemic episodes in a client with diabetes who reports frequent episodes is to monitor blood glucose levels frequently. By monitoring blood glucose levels, the nurse can make necessary adjustments to insulin dosage and diet to maintain blood sugar levels within the target range. Increasing protein intake (Choice A) is not directly related to preventing hypoglycemia; it is more important to focus on balancing carbohydrates and insulin. Increasing the dose of insulin (Choice C) without proper monitoring can lead to further hypoglycemic episodes. Similarly, reducing carbohydrate intake (Choice D) should be done cautiously as carbohydrates are a main source of energy and sudden reduction can cause hypoglycemia in diabetic patients.

Correct Answer: A

Rationale: The correct answer is A: "Blockage in a blood vessel supplying the brain." Ischemic stroke is caused by a blockage in a blood vessel supplying the brain, leading to reduced blood flow. Hemorrhagic stroke, on the other hand, is caused by bleeding in the brain due to a ruptured blood vessel. Choices B, C, and D are incorrect. Administering thrombolytics, avoiding anticoagulants, and preparing for surgery are specific management strategies that may apply to ischemic or hemorrhagic strokes but do not define the main differences between the two types of strokes.