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.

Correct Answer: C

Rationale: Urinary retention is an adverse effect of morphine, as it can lead to the relaxation of the detrusor muscle and sphincter constriction in the bladder. Diaphoresis, hypotension, and tachycardia are common side effects of morphine due to its vasodilatory effects and impact on the autonomic nervous system. Diaphoresis is excessive sweating, which can be a normal response to pain or fever. Hypotension and tachycardia can occur due to morphine's vasodilatory effects and its impact on the cardiovascular system. Therefore, the presence of urinary retention would indicate the need for further assessment and intervention.

Correct Answer: A

Rationale: The correct answer is A: 'Use three-pronged grounded plugs.' This is important in preventing electrical fires as it provides a grounded connection, reducing the risk of electrical malfunctions. Choice B is incorrect because covering extension cords with a rug can lead to overheating and increase the risk of fire. Choice C is also incorrect as tingling sensations around a cord indicate an electrical hazard, not proper functioning. Choice D is incorrect as pulling the cord to remove a plug can damage the cord, leading to potential electrical dangers.

Correct Answer: C

Rationale: The correct intervention for a client with Raynaud's disease is to provide information about stress management. Stress can trigger Raynaud's episodes, so managing stress can help reduce the frequency and severity of the condition. Maintaining a warm temperature in the client's room (Choice A) is important to prevent vasoconstriction and worsening of symptoms. Administering epinephrine (Choice B) is not a standard treatment for Raynaud's disease. Giving glucocorticoid steroids (Choice D) is not the primary treatment for Raynaud's disease and is not typically prescribed for this condition.

Correct Answer: B

Rationale: The correct action for the nurse to take is to assess the client's lung sounds before administering IV fluids. This is crucial to identify any signs of fluid overload, such as crackles or wheezes. Administering the solution slowly over 24 hours (choice A) is not appropriate for an IV bolus, which is a rapid infusion. Changing the IV tubing every 12 hours (choice C) is a standard practice for preventing infection but is not directly related to administering an IV bolus. Flushing the IV line with heparin every 4 hours (choice D) is a maintenance practice to prevent clot formation in the line, not specifically related to administering an IV bolus.