Correct Answer: C

Rationale: The correct answer is C: The distal tip of the catheter is in the appropriate position. Rationale: 1. The superior vena cava is a desirable location for a central venous catheter tip placement as it is close to the heart for rapid medication delivery. 2. Catheter tip in the superior vena cava allows for proper venous return and minimizes the risk of complications. 3. The nurse does not need to remove or adjust the catheter if the tip is in the superior vena cava. 4. Advancing the catheter into the pulmonary artery (option D) would be incorrect as it can lead to serious complications. Incorrect choices: A: Incorrect because placement in the superior vena cava is acceptable. B: Incorrect as placement in the superior vena cava does not increase the risk of ventricular dysrhythmias. D: Incorrect as advancing the catheter into the pulmonary artery is unnecessary and risky.

Correct Answer: B

Rationale: The correct answer is B: Disconnection from the ventilator. This is the correct choice because a high inspiratory pressure alarm can indicate a disconnection, leading to inadequate ventilation and increased pressure in the circuit. This can be a life-threatening situation that requires immediate attention. Explanation of why other choices are incorrect: A: Coughing or attempting to talk - While coughing or talking may affect the patient's ability to ventilate properly, it is not directly related to the high inspiratory pressure alarm. C: Kinks in the ventilator tubing - Kinks in the tubing may cause increased resistance to airflow, but they are more likely to trigger a low pressure alarm rather than a high inspiratory pressure alarm. D: Need for suctioning - Suctioning may be necessary for airway clearance, but it is not directly related to the high inspiratory pressure alarm.

Correct Answer: C

Rationale: The correct answer is C. Assessing how long the client has been taking clonidine is crucial as drowsiness is a common side effect that typically improves over time as the body adjusts to the medication. This information helps determine if the drowsiness is a temporary side effect or a more concerning issue. Choice A (constipation) is not directly related to drowsiness as a side effect of clonidine. Choice B (missed doses) may contribute to drowsiness but is not the primary assessment priority. Choice D (tobacco use) is not directly related to clonidine-induced drowsiness.

Correct Answer: D

Rationale: The correct answer is D: Adequate pain control. Pain can significantly disrupt sleep in critically ill patients. By ensuring adequate pain control, the nurse can help improve the patient's ability to rest and sleep. This intervention targets a key factor affecting sleep cycles in critically ill patients. Repositioning every 2 hours (A) may help prevent pressure ulcers but does not directly address sleep improvement. Hypnotic medications (B) may have adverse effects and are not recommended as a first-line intervention. Five-minute back effleurage (C) may provide temporary relaxation but is not as effective as adequate pain control in improving sleep quality.

Correct Answer: C

Rationale: The correct answer is C because it reflects patient-centered care by involving patients and families in decision-making. Collaborating with them on visitation preferences promotes a supportive environment. Choice A restricts animal visitation, not addressing human visitors. Choice B limits visitation during specific times, not individualized. Choice D imposes restrictions based on age, not on patient/family preferences. Therefore, Choice C is the most aligned with current recommendations for open visitation policies.