Critical Care Nursing Cardiac Questions

Correct Answer: B

Rationale: The correct answer is B: Use of best available research data. Evidence-based practice involves integrating the best available research evidence with clinical expertise and patient values to make informed decisions about patient care. It emphasizes using scientifically proven data to guide practice and improve patient outcomes. Expert legal testimony (A) is not necessarily evidence-based. Evolution of nursing practice over time (C) does not specifically focus on research data. Individual optimization of patient outcomes (D) is a goal of evidence-based practice, but it does not fully encompass the concept.

Correct Answer: C

Rationale: The correct answer is C: Brain death has occurred if there is no breathing and certain reflexes are absent. Brain death is defined as the irreversible cessation of all functions of the entire brain, including the brainstem. The absence of breathing and certain reflexes, such as no response to painful stimuli or no pupillary response to light, are key indicators of brain death. This definition is crucial for determining eligibility for organ donation. Incorrect choices: A: Brain death occurs if a person is flaccid and unresponsive. Flaccidity and unresponsiveness are not specific criteria for diagnosing brain death. B: If CPR is ineffective in restoring a heartbeat, the brain cannot function. The absence of a heartbeat alone does not indicate brain death. D: If respiratory efforts cease and no apical pulse is audible, brain death is present. Respiratory cessation and the absence of pulse are not definitive signs of brain death.

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.

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: A

Rationale: The correct answer is A: Give around-the-clock routine administration of analgesics. This is the best approach for managing continuous and severe pain in a terminally ill patient. By providing scheduled doses of opioid pain medications, the nurse ensures a consistent level of pain relief, preventing peaks and troughs in pain control. This approach also helps in preventing the patient from experiencing unnecessary suffering. Choice B (PRN doses) may lead to inadequate pain control as the patient may wait too long before requesting medication. Choice C (keeping the patient sedated) is not appropriate as the goal is pain management, not sedation. Choice D (balancing pain control and respiratory rate) is important, but the priority should be on effectively managing the pain first.