Correct Answer: D

Rationale: The correct answer is D, International normalized ratio (INR). INR is used to monitor the therapeutic effect of warfarin, an anticoagulant medication. Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors. Monitoring the INR helps assess how well the medication is working to prevent blood clots. Choices A, B, and C are not specific indicators for monitoring the effectiveness of warfarin. Hemoglobin levels primarily assess the oxygen-carrying capacity of red blood cells, platelet count evaluates the clotting ability of blood, and PT measures the time it takes for blood to clot. While these values are important for overall health assessment, they do not directly reflect the anticoagulant effects of warfarin.

Correct Answer: D

Rationale: Food exchange lists from the American Diabetes Association are a valuable resource for meal planning in diabetes. These lists provide guidelines for portion control and help individuals make healthier food choices. Personal blogs may not always provide accurate and evidence-based information. Food label recommendations are important but may not specifically address meal planning for diabetes. Diabetes medication information is essential but not the primary focus when educating about dietary management for type 2 diabetes.

Correct Answer: B

Rationale: Clients with a low platelet count are at risk of bleeding and infection. Monitoring the client's temperature every 4 hours is crucial to detect early signs of infection, as they may not be able to mount a typical immune response due to their compromised platelet count. Administering aspirin (choice A) is contraindicated in clients with low platelet counts as it can further increase the risk of bleeding. Monitoring urine output (choice C) and checking for stool in a colostomy bag (choice D) are important aspects of care but are not the priority in a client with low platelet count.

Correct Answer: C

Rationale: The correct answer is C: Diaphoresis. Diaphoresis, which is excessive sweating, is a common sign of hypoglycemia due to the activation of the sympathetic nervous system. Tachycardia (choice A) is more commonly associated with hyperglycemia. Dry mouth (choice B) is not a typical finding in hypoglycemia but may be seen in hyperglycemia. Increased appetite (choice D) is not a typical sign of hypoglycemia and is more commonly associated with hyperglycemia.

Correct Answer: A

Rationale: The correct answer is A: Follow a 3g sodium diet. For clients with chronic heart failure, limiting sodium intake is crucial to prevent fluid retention and exacerbation of heart failure symptoms. High sodium intake can lead to fluid buildup, causing the heart to work harder. Choices B, C, and D are incorrect. Drinking excessive fluid can worsen fluid retention in heart failure, elevating the workload of the heart. Placing the client's lower extremities on two pillows is a positioning intervention to alleviate edema, not a dietary recommendation. Maintaining oxygen saturation at 89% is more related to respiratory status rather than dietary management of chronic heart failure.