Correct Answer: C

Rationale: Correctly trimming toenails straight across is crucial in preventing ingrown toenails and potential infections in individuals with diabetes. Ingrown toenails can lead to complications, so it is essential for diabetic clients to practice proper nail care to avoid these issues. Choices A, B, and D are incorrect. Walking barefoot can increase the risk of foot injuries, soaking feet in hot water can cause burns or skin damage, and using a heating pad can lead to burns or injuries due to decreased sensation in the feet, which is common in diabetes.

Correct Answer: B

Rationale: Encouraging passive range-of-motion exercises is the most appropriate intervention to help relieve symptoms of joint pain and stiffness in clients with severe rheumatoid arthritis. These exercises help maintain joint mobility, prevent muscle contractures, and reduce stiffness in the affected joints. Passive range-of-motion exercises can also improve circulation to the joints, promoting healing and reducing pain. Applying cold packs may help with inflammation and pain temporarily, but it does not address the long-term joint mobility issues associated with rheumatoid arthritis. Muscle relaxants are not typically indicated for managing joint pain and stiffness in rheumatoid arthritis. While nutrition is important for overall health, providing a high-calorie diet is not a direct intervention for relieving joint pain and stiffness in this context.

Correct Answer: B

Rationale: Corrected Rationale: When caring for a patient on warfarin, monitoring prothrombin time (PT) is crucial. PT helps assess the blood's ability to clot properly, ensuring the patient maintains therapeutic anticoagulation levels while minimizing bleeding risks. Platelet count (Choice A) is important but not the most critical for warfarin therapy. Hemoglobin level (Choice C) and white blood cell count (Choice D) are not directly related to monitoring the effects of warfarin.

Correct Answer: C

Rationale: The correct answer is to review the hemoglobin level before administering epoetin alfa (Epogen) to assess its effectiveness in stimulating red blood cell production. Hemoglobin level is a crucial indicator to monitor in clients with chronic renal failure receiving this medication. Choice A (Blood urea nitrogen) and Choice B (Creatinine clearance) are commonly monitored in renal failure but are not specifically relevant to assessing the effectiveness of epoetin alfa. Choice D (Serum potassium) is important to monitor due to potential imbalances in renal failure, but it is not directly related to evaluating the effectiveness of epoetin alfa.

Correct Answer: B

Rationale: Fever and chills are classic signs of a transfusion reaction. These symptoms indicate that the body is having a response to the transfused blood, possibly due to incompatibility or an immune reaction. Elevated blood pressure (choice A) is not a typical sign of a transfusion reaction. Increased urine output (choice C) and bradycardia (choice D) are also not characteristic signs of a transfusion reaction. It is crucial to recognize symptoms of a transfusion reaction promptly to prevent further complications and ensure appropriate management.