Critical Care Nursing Exam Questions

Correct Answer: D

Rationale: The presence of a bruit over the thyroid indicates increased blood flow, characteristic of hyperthyroidism. This excess blood flow is due to the hypermetabolic state in hyperthyroidism, leading to turbulent blood flow and the audible bruit. A bruit is not typically associated with hypothyroidism, thyroid cysts, or thyroid cancer, as these conditions do not cause increased blood flow. Therefore, the correct interpretation is hyperthyroidism.

Correct Answer: A

Rationale: The correct answer is A. A Posey-type vest is a restraint designed to prevent patients from pulling out medical devices like endotracheal tubes, ensuring their safety. It is a less restrictive option compared to wrist restraints and sedatives (B and C), which can have adverse effects and may not directly address the concern of tube removal. Using a Posey-type vest promotes patient autonomy by allowing some movement while still providing the necessary protection.

Correct Answer: C

Rationale: The correct answer is C: Obtain a portable x-ray to confirm placement. This is the priority intervention because it ensures the arterial line is correctly positioned, reducing the risk of complications such as dislodgement or improper placement. Applying a pressure dressing (choice A) may be necessary but is not the priority. Ensuring tubing connections are tightened (choice B) is important for preventing leaks but does not address placement. Restraining the affected extremity (choice D) is unnecessary and can lead to complications. The x-ray confirms correct placement, ensuring accurate monitoring and treatment.

Correct Answer: A

Rationale: The correct answer is A because the patient in cardiogenic shock with a cardiac output of 2.0 L/min is experiencing a life-threatening condition that requires immediate evaluation. Cardiogenic shock indicates poor cardiac function, which can lead to multi-organ failure. Monitoring cardiac output is crucial in managing these patients. Choice B is incorrect because a pulmonary artery systolic pressure of 20 mm Hg is within normal range and does not indicate an immediate life-threatening condition. Choice C is incorrect because a CVP of 6 mm Hg in a hypovolemic patient may indicate volume depletion, but it is not as urgent as the patient in cardiogenic shock. Choice D is incorrect because a PAOP of 10 mm Hg is within normal range and does not suggest an immediate critical condition.

Correct Answer: D

Rationale: Step 1: The correct answer is D because the situation involves a patient with multiple trauma who is not responding to treatment and has no known family members. This indicates a complex ethical dilemma where the medical team may be unsure about the appropriate course of action. Step 2: In this scenario, an ethics consultation is necessary to help guide decision-making regarding the care of the patient. The lack of available family members complicates decision-making, and the consideration of care as futile adds another layer of complexity. Step 3: An ethics consultation can provide a structured framework for evaluating the situation, considering ethical principles such as beneficence, non-maleficence, autonomy, and justice. It can help the healthcare team navigate the ethical considerations and make a well-informed decision in the best interest of the patient. Summary: Choice A: While conflicts between the primary care provider and family may warrant discussions, the agreement on a treatment plan does not necessarily require an ethics consultation. Choice B: Disagreement