Correct Answer: B

Rationale: The correct answer is B: Because the patient is unconscious, complete care as quickly and quietly as possible. This is the most appropriate intervention as it prioritizes the patient's comfort and minimizes unnecessary stimulation. Performing care quickly reduces the time the patient is exposed to potentially uncomfortable procedures. Being quiet also helps create a calming environment for the patient, which is important for someone who is unresponsive. Explanation for other choices: A: Asking a family member to help and discussing family structure is not appropriate as it can be intrusive and may not be relevant or beneficial to the patient's care. C: Informing the patient of the day and time is unnecessary as the patient is unresponsive. Providing care is more crucial than updating the patient. D: Turning on the television is inappropriate as it introduces unnecessary noise and distraction, which can be overwhelming for an unresponsive patient.

Correct Answer: D

Rationale: The correct answer is D: Mobility. Maintaining mobility helps prevent blood stasis, a leading factor in the development of pulmonary embolism. Movement promotes circulation, reducing the risk of blood clots. A: Antiseptic oral care is important for oral hygiene but not directly related to preventing pulmonary embolism. B: Bed rest with head of bed elevated can actually increase the risk of clots due to immobility. C: Coughing and deep breathing are beneficial for preventing respiratory complications but do not address the underlying cause of pulmonary embolism.

Correct Answer: A

Rationale: The correct answer is A because writing DNR orders before discontinuation of life-sustaining treatments ensures clear communication and legal documentation of the patient's wishes. Choice B is incorrect as family support is essential in end-of-life care. Choice C is incorrect as DNR orders should be established before withdrawing treatment. Choice D is incorrect as the DNR order should be in place before shift change for immediate implementation if needed.

Correct Answer: A

Rationale: The correct answer is A because communication with intubated patients is often challenging due to the presence of an artificial airway, which hinders speech. This understanding is crucial when determining appropriate nursing interventions to ensure effective patient care. Choice B is incorrect because different patients may require different modes of ventilation based on their specific condition, and controlled ventilation may not always be the preferred mode for all patients. Choice C is incorrect as patients with chronic obstructive pulmonary disease often have difficulty weaning from mechanical ventilation due to their underlying respiratory condition. Choice D is incorrect as wrist restraints are not applied to all patients on mechanical ventilation unless absolutely necessary for safety concerns, such as preventing self-extubation.

Correct Answer: B

Rationale: The correct answer is B: Assess further for a cause of the decreased circulation. The nurse should prioritize assessing the cause of the absent left pedal pulse and leg swelling to address the severe leg trauma effectively. This step involves identifying potential vascular compromise or compartment syndrome, which are critical conditions requiring immediate intervention. Sending blood for a complete blood count (A) is not the priority in this situation. Finishing the primary survey (C) may delay addressing the circulation issue. Starting normal saline infusion (D) without addressing the circulation problem first could potentially worsen the condition. Therefore, assessing further for the cause of decreased circulation is the most appropriate next step to ensure timely and appropriate management of the patient's condition.