A client with severe rheumatoid arthritis is experiencing joint pain and stiffness. Which intervention should the nurse implement to help relieve the client's symptoms?

Correct Answer: B

Rationale: The correct answer is B: Encourage passive range-of-motion exercises. This intervention helps improve joint mobility, reduce stiffness, and alleviate pain in clients with rheumatoid arthritis. Passive range-of-motion exercises can prevent joint contractures and maintain joint function. Applying cold packs (A) may help reduce inflammation but does not address joint stiffness. Administering a muscle relaxant (C) is not typically indicated for rheumatoid arthritis. Providing a high-calorie diet (D) is important for overall health but does not directly address joint pain and stiffness in this case.

Correct Answer: B

Rationale: The correct answer is B: Serum potassium of 2.8 mEq/L. Hypokalemia can lead to life-threatening cardiac arrhythmias, especially in diabetic patients with hyperglycemia. Immediate intervention is needed to prevent cardiac complications. A: Serum glucose of 350 mg/dL is high but not immediately life-threatening. C: Serum sodium of 136 mEq/L is within normal range and does not require immediate intervention. D: Serum bicarbonate of 20 mEq/L is slightly low but does not pose an immediate risk to the patient's life.

Correct Answer: C

Rationale: The correct answer is C: Urine output of 20 ml/hour. In severe dehydration, decreased urine output indicates compromised renal function and impaired fluid balance, necessitating immediate intervention to prevent further complications. A: Heart rate of 110 bpm is elevated but not an immediate concern. B: Blood pressure of 90/60 mm Hg is low but may be compensated in dehydration. D: Dry mucous membranes are a sign of dehydration but not an immediate threat compared to inadequate urine output.

Correct Answer: B

Rationale: The correct answer is B: LDL of 200 mg/dL. Elevated LDL levels are a major risk factor for CAD and require immediate intervention. Atorvastatin (Lipitor) is used to lower LDL levels. High LDL contributes to plaque buildup in arteries. A: Total cholesterol of 180 mg/dL is within the normal range and doesn't require immediate intervention. C: Triglycerides of 150 mg/dL are also within the normal range and don't pose an immediate risk. D: HDL of 40 mg/dL is considered low, but it is not as critical as high LDL levels in the context of CAD.

Correct Answer: C

Rationale: Correct Answer: C - Trim your toenails straight across to prevent ingrown toenails. Rationale: 1. Trimming toenails straight across helps prevent ingrown nails. 2. Ingrown nails can lead to infection, especially risky for diabetics due to poor wound healing. 3. Walking barefoot toughens feet, increasing risk of injury. 4. Soaking in hot water can cause burns or skin damage. 5. Using a heating pad can lead to burns or decreased sensation in feet, increasing injury risk. Summary: Option C is correct as it directly addresses a common issue in diabetic foot care - ingrown toenails. Options A, B, and D pose risks of injury or damage to the feet, which is detrimental for diabetic individuals.