Critical Care Nursing Cardiac Questions

Correct Answer: A

Rationale: The correct answer is A: Apply wet sheets and a fan to the patient. This is the initial treatment for hyperthermia to aid in lowering the body temperature. Wet sheets help in evaporative cooling, while a fan enhances heat loss through convection. This approach is crucial in managing heat-related illnesses quickly. Choices B, C, and D are incorrect as they do not directly address the urgent need to reduce the patient's elevated core temperature. Providing O2, IV fluids, or acetaminophen can be considered later in the management, but the priority is to rapidly lower the body temperature in a hyperthermic patient to prevent further complications.

Correct Answer: B

Rationale: The correct answer is B because giving regular condition updates promotes transparency and communication, reducing anxiety for the family. This intervention helps them stay informed and involved in the patient's care. Choice A may lead to caregiver fatigue and is not sustainable. Choice C limits family support and may increase stress. Choice D focuses on comfort but does not address the family's need for information.

Correct Answer: C

Rationale: The correct answer is C because it explains that the decision to remove life-sustaining treatments is based on the fact that these treatments are not helping the patient and may actually be causing discomfort. This rationale aligns with the principle of beneficence, which emphasizes doing good and avoiding harm to the patient. It also respects the patient's autonomy by prioritizing their well-being and quality of life. Choice A is incorrect as it focuses on financial reasons rather than the patient's best interest. Choice B is incorrect because it prioritizes hospital resources over individual patient care. Choice D is incorrect as it lacks clarity and may come across as insensitive to the significant other's concerns.

Correct Answer: D

Rationale: The correct answer is D because when a reliable 24-hour urine collection is not possible, a standardized formula can be used to estimate GFR. The Cockcroft-Gault equation or the Modification of Diet in Renal Disease (MDRD) equation are commonly used formulas to estimate GFR based on serum creatinine levels, age, gender, and race. These formulas provide a reasonable estimation of kidney function in the absence of a 24-hour urine collection. Choice A is incorrect because there are alternative methods available to estimate GFR. Choice B is incorrect because BUN alone is not sufficient to accurately determine renal function. Choice C is incorrect because an elevated BUN/creatinine ratio is not a direct measure of GFR and may be influenced by factors other than kidney function, such as hydration status or liver function.

Correct Answer: D

Rationale: The correct answer is D, Living will. A living will is a legal document that outlines a person's preferences for medical treatment if they become unable to communicate their wishes. It specifically addresses life-prolonging procedures. Option A, Do not resuscitate order, is a specific directive to not perform CPR in case of cardiac arrest, not a comprehensive medical care directive. Option B, Healthcare proxy, is a person designated to make medical decisions on behalf of a patient who is unable to do so, not the specific directive itself. Option C, Informed consent, refers to the process of obtaining permission from a patient before conducting a healthcare intervention, not a directive for life-prolonging procedures.