Correct Answer: C

Rationale: Instructing the client to focus on gradually resuming self-care tasks is the most appropriate strategy to promote independence following an acute myocardial infarction. This approach allows the client to regain confidence and control over their self-care activities without feeling overwhelmed. Requesting an occupational therapy consult (Choice A) may be beneficial but is not the immediate solution to promote independence. Assigning assistive personnel (Choice B) to perform tasks for the client does not encourage independence. Asking if a family member is available for assistance (Choice D) does not directly promote the client's independence.

Correct Answer: A

Rationale: The correct answer is to check for air leaks in the tubing every 4 hours when caring for a client with a chest tube. This responsibility is crucial because it ensures proper chest tube function and helps prevent complications such as pneumothorax or hemothorax. Clamping the chest tube (Choice B) can lead to serious issues by causing a tension pneumothorax. Encouraging deep breathing and coughing (Choice C) is important for respiratory hygiene but is not directly related to chest tube care. Keeping the client in a high Fowler's position (Choice D) may be beneficial for some conditions but is not specific to chest tube management.

Correct Answer: D

Rationale: All of the above options are essential in preventing deep vein thrombosis (DVT) in post-operative patients. Encouraging early ambulation helps prevent blood stasis in the lower extremities, reducing the risk of DVT. Administering anticoagulants can prevent blood clots from forming. Compression stockings promote blood flow, reducing the likelihood of clot formation. Each intervention plays a crucial role in DVT prevention, making the correct answer 'All of the above.' Choices A, B, and C are not exclusive of each other but rather work synergistically to provide comprehensive prevention against DVT.

Correct Answer: B

Rationale: The correct answer is B: Bananas. Bananas are high in potassium, which helps counter the potassium-depleting effects of furosemide. Furosemide is a loop diuretic that can lead to potassium loss, so including potassium-rich foods like bananas in the diet can help maintain a healthy potassium level. Choices A, C, and D do not specifically address the potassium needs associated with furosemide therapy and are not the most appropriate recommendations in this context.

Correct Answer: B

Rationale: The correct task to delegate to the LPN is administering initial NG tube feeding. LPNs are trained to carry out this task as it falls within their scope of practice. Inserting an IV catheter (Choice A) is typically performed by registered nurses. Administering insulin (Choice C) and giving medications for diabetes (Choice D) involve assessing the patient's condition and adjusting medication dosage, which are responsibilities of registered nurses or higher-level healthcare providers.