Correct Answer: B

Rationale: After a lumbar puncture, a severe headache is often caused by cerebrospinal fluid leakage. Elevating the head of the bed or having the client lie flat can reduce cerebrospinal fluid pressure and alleviate the headache. These positions help prevent further fluid loss and relieve discomfort. While acetaminophen or caffeine may help in relieving the headache, changing the client's position is the priority to address the underlying cause. Resting in a dark room may be beneficial for headache relief but is not the priority intervention compared to adjusting the position to manage cerebrospinal fluid pressure.

Correct Answer: D

Rationale: In this scenario, the best care assignment for the client with a skin tear and hematoma is to supervise a nursing assistant for skin care. This ensures proper wound care while utilizing the skills of the nursing assistant effectively. Assigning an RN to supervise the nursing assistant is appropriate as it provides the necessary expertise for wound care supervision. Delegating complete care to an unlicensed assistive personnel may not be suitable for a client with specific wound care needs. Helping the client with self-care activities may not directly address the urgent need for proper wound care in this situation.

Correct Answer: C

Rationale: A potassium level of 6.2 mEq/L indicates hyperkalemia, which is dangerous and requires immediate treatment. Administering a potassium-binding medication will help lower potassium levels and prevent life-threatening complications.

Correct Answer: C

Rationale: Performing frequent oral care with a tooth sponge is the most appropriate nursing measure in this scenario. This helps maintain comfort and prevent dryness in clients with nasogastric tubes. Allowing the client to melt ice chips in the mouth may not address oral care needs effectively. Providing mints to freshen the breath is not the priority when the client needs oral care. Swabbing the mouth with glycerin swabs may not be as effective as performing thorough oral care with a tooth sponge.

Correct Answer: D

Rationale: Administering a diuretic as prescribed is the most appropriate intervention to manage fluid volume in a client with ascites due to advanced liver disease. Diuretics help reduce fluid accumulation in the body, including the abdominal cavity where ascites occurs. Increasing sodium intake would worsen fluid retention, and encouraging more fluid intake can exacerbate ascites. Placing the client in a supine position does not directly address the fluid volume issue associated with ascites.