Critical Care Nursing Practice Questions

Correct Answer: C

Rationale: The correct answer is C: High resolution multidetector CT angiogram. This diagnostic procedure is required for a definitive diagnosis of pulmonary embolism because it provides detailed imaging of the pulmonary vasculature, allowing visualization of blood clots in the pulmonary arteries. A: Arterial blood gas (ABG) analysis does not directly diagnose pulmonary embolism but may show signs of hypoxemia or respiratory alkalosis, which can be seen in some cases of pulmonary embolism. B: Chest x-ray examination may show nonspecific findings such as atelectasis or pleural effusion but cannot definitively diagnose pulmonary embolism. D: Ventilation-perfusion scanning is another imaging modality used in the diagnosis of pulmonary embolism, but it is less commonly used compared to CT angiogram due to lower sensitivity and specificity.

Correct Answer: D

Rationale: The correct answer is D: Ask the healthcare provider about tapering the drug dose over the next week. This answer is correct because propranolol is a beta-blocker, and abrupt discontinuation can lead to rebound hypertension, angina, or even myocardial infarction due to the sudden withdrawal of the medication. Tapering the drug dose over time allows the body to adjust gradually and reduces the risk of these adverse effects. Choice A is incorrect because obtaining another antihypertensive prescription is not necessary if the client's blood pressure has been normal for the past three months. Choice B is incorrect because abruptly stopping the medication without tapering can lead to withdrawal symptoms. Choice C is incorrect because simply reporting uncomfortable symptoms without taking appropriate action (tapering the drug dose) is not addressing the potential risks associated with abrupt discontinuation of propranolol.

Correct Answer: D

Rationale: The correct answer is D (1 to 2 L/day) because the average adult typically produces 1 to 2 liters of urine per day. This range is considered normal for maintaining proper hydration and eliminating waste products. Choice A (80 to 125 mL/min) is incorrect as it represents the rate of urine production per minute, which is not commonly used to measure daily urine output. Choice B (180 L/day) is unrealistic and far exceeds the normal range for urine output. Choice C (80 mL/min) is too low for daily urine output and would not be sufficient for adequate waste elimination.

Correct Answer: A

Rationale: The correct answer is A: Clinical practice guidelines. Clinical practice guidelines are evidence-based recommendations that assist nurses in providing appropriate care based on research. They outline best practices for specific patient populations or conditions, helping nurses make informed decisions. Summary: - B: Computerized physician order entry: While it may improve accuracy and efficiency, it does not specifically ensure care based on research. - C: Consulting with advanced practice nurses: While collaboration is valuable, it does not guarantee care based on research. - D: Implementing Joint Commission National Patient Safety Goals: Important for patient safety, but not directly related to ensuring care based on research.

Correct Answer: A

Rationale: The correct answer is A: Verbally coach the patient to breathe with the ventilator. This approach allows the nurse to address the patient's anxiety and help them synchronize their breathing with the ventilator, promoting better ventilation and oxygenation. It is important to first try non-invasive interventions before resorting to sedation or manual ventilation. Sedating the patient (B) should be a last resort to avoid potential complications. Manual ventilation (C) may disrupt the ventilator settings and cause respiratory distress. Increasing the rate of propofol infusion (D) is not indicated unless the patient's sedation level is inadequate.