Correct Answer: B

Rationale: The correct intervention for a client with a chest tube connected to a closed drainage system is to maintain the drainage below the level of the chest. This position allows proper drainage of fluids and helps prevent complications such as backflow of blood or fluids into the chest cavity. Clamping the chest tube (Choice A) is incorrect as it can lead to a tension pneumothorax. Elevating the chest tube above chest level (Choice C) is also incorrect because it can impede proper drainage. Avoiding frequent dressing changes (Choice D) is important to prevent introducing infection, but it is not directly related to the position of the drainage system.

Correct Answer: B

Rationale: The correct answer is B. Changing the TPN tubing every 24 hours is crucial in preventing infection by reducing the risk of bacterial contamination. Monitoring electrolyte levels (choice A) is essential but not directly related to preventing TPN-related infections. Monitoring blood glucose levels (choice C) is important for clients receiving TPN, but it is more related to glycemic control than infection prevention. Administering insulin as prescribed (choice D) is necessary for clients with diabetes but is not directly linked to preventing TPN-related infections.

Correct Answer: B

Rationale: The correct answer is to reduce caffeine and alcohol intake for a client with hypertension. Caffeine and alcohol can increase blood pressure, so reducing their intake can help manage hypertension. Increasing sodium intake (Choice A) is not recommended for hypertension as it can lead to fluid retention and increased blood pressure. Eating carbohydrate-rich meals (Choice C) is also not ideal as excessive carbohydrates can contribute to weight gain, which can worsen hypertension. Similarly, increasing protein intake (Choice D) is not a primary focus for managing hypertension unless a specific protein deficiency is present.

Correct Answer: C

Rationale: The correct answer is C: 'Lack of sleep.' In a client experiencing acute mania due to bipolar disorder, lack of sleep is the priority finding for the nurse to address. Sleep deprivation can exacerbate symptoms, lead to exhaustion, and increase the risk of further complications. Pressured speech, increased appetite, and mood swings are also common in acute mania, but addressing the lack of sleep takes precedence due to its significant impact on the client's well-being and recovery.

Correct Answer: B

Rationale: The correct first action for a client with a serum albumin level of 3 g/dL and a pressure ulcer is to consult a dietitian to improve the client's nutritional status. Adequate nutrition is essential for wound healing. Monitoring fluid and electrolyte balance is important but not the first priority in this situation. Administering a protein supplement can be considered after dietary evaluation. Administering an anti-inflammatory medication is not the primary intervention for addressing a pressure ulcer related to low albumin levels.