Correct Answer: B

Rationale: The correct answer is B: Blood glucose. When caring for a client receiving total parenteral nutrition (TPN), monitoring blood glucose levels is essential due to the increased risk of hyperglycemia associated with TPN infusion. Elevated blood glucose levels can lead to complications such as hyperglycemia, which can be harmful to the client. While monitoring serum potassium (Choice A), serum sodium (Choice C), and serum calcium (Choice D) are also important aspects of care, when specifically considering TPN administration, blood glucose monitoring takes precedence due to the potential for significant complications related to glucose imbalances.

Correct Answer: D

Rationale: Crepitus around the chest tube insertion site may indicate subcutaneous emphysema, which requires immediate attention. The presence of crepitus suggests air leaking into the tissues, which could lead to respiratory compromise. Constant bubbling in the suction control chamber is expected and indicates proper functioning of the chest tube system. Intermittent bubbling in the water seal chamber is also normal, showing the system is intact. Drainage of 50 ml per hour is within the expected range for a chest tube.

Correct Answer: B

Rationale: The correct answer is B: Water. Giving sips of water can help dilute the drain cleaner while waiting for emergency transport, which may help reduce the potential harm caused by the ingestion. Choices A, C, and D are incorrect because tea, milk, and soda can interact with the chemicals in the drain cleaner or increase the risk of vomiting, which is not recommended in this situation.

Correct Answer: A

Rationale: The correct time to collect a sputum specimen for culture and sensitivity is in the morning upon rising. This timing ensures the most concentrated sample as sputum produced overnight tends to accumulate and sit in the airways, providing a quality sample for testing. Collecting the specimen immediately after eating breakfast (choice B) may introduce food particles that could contaminate the sample. Collecting it before bed (choice C) may lead to a diluted sample due to daily activities. Collecting the specimen after having a drink of water (choice D) can also result in a diluted sample, impacting the accuracy of the test results.

Correct Answer: C

Rationale: Morphine IV is the most appropriate choice for severe postoperative pain due to its rapid onset and effectiveness. Meperidine is not preferred due to its potential side effects, and fentanyl patches are typically used for chronic pain, not acute postoperative pain. Oxycodone taken orally is not ideal for providing immediate relief in this situation.