Correct Answer: C

Rationale: When a client requires parenteral nutrition (PN) with a high dextrose concentration, such as 20%, it typically has a high osmolarity. High osmolarity solutions should be infused through a central venous line to prevent peripheral vein irritation and potential complications. Therefore, preparing the client for a central venous line is essential for the safe administration of PN with high dextrose. Monitoring blood glucose levels daily is important but not directly related to the need for a central venous line. Changing the PN infusion bag every 24 hours helps prevent bacterial contamination, but it is not the most critical action in this scenario. Administering the PN and fat emulsion together or separately is a matter of compatibility and administration guidelines, but it is not the key concern in this situation.

Correct Answer: A

Rationale: Raising the bed level is the correct action to facilitate easier access for mouth care in an unresponsive client. This position enhances the safety and comfort of both the client and the healthcare provider. Administering mouth care with the client in a supine position (lying flat on their back) can increase the risk of aspiration. Using a tongue depressor to open the mouth is not recommended as it can cause discomfort and potential injury. Placing the client in a prone position (lying face down) is contraindicated for mouth care and can compromise the client's airway.

Correct Answer: D

Rationale: The absence of breath sounds on the affected side is a critical finding that may indicate a tension pneumothorax, a life-threatening condition requiring immediate intervention. This situation can lead to a shift of the mediastinum and impaired ventilation. Bubbling in the water seal chamber is an expected finding in a chest tube drainage system and indicates proper functioning. Drainage greater than 70 ml/hour is a concern but does not require immediate reporting unless it continues at a high rate or is associated with other symptoms. Tidaling in the water seal chamber is a normal fluctuation and indicates the chest tube system is patent and functioning correctly.

Correct Answer: A

Rationale: The appropriate initial action for the nurse is to examine the elbow. This step is crucial to assess the site of pain, identify any visible signs of injury or inflammation, and determine the cause of the discomfort. Administering pain medication (Choice B) should come after a thorough assessment. Applying a warm compress (Choice C) might provide temporary relief but does not address the underlying cause. Assessing the client's range of motion (Choice D) is important but would come after the initial examination to further evaluate the elbow joint.

Correct Answer: C

Rationale: A prescription for once-daily medication is considered routine as it is meant for regular, daily administration to maintain therapeutic levels in the body. Single prescriptions are for one-time use only. Stat prescriptions are for immediate administration in urgent situations, while now prescriptions are also for immediate use but may have varying levels of urgency depending on the patient's condition. In this case, since the prescription is for once daily use, it falls under the category of routine prescription.