Critical Care Nursing Practice Questions

Correct Answer: A

Rationale: The correct answer is A: a percutaneous catheter at the bedside. This is the most appropriate option for immediate hemodialysis when the patient has no vascular access. A percutaneous catheter can be quickly inserted at the bedside, allowing for immediate initiation of hemodialysis. Choice B, a percutaneous tunneled catheter, involves a more complex insertion process and is not typically done at the bedside. Choices C and D, arteriovenous fistula and arteriovenous graft, require advanced planning and surgical procedures, making them unsuitable for immediate hemodialysis in this scenario.

Correct Answer: A

Rationale: The correct answer is A: Evidence-based practice. The AACN Standards for Acute and Critical Care Nursing Practice emphasize the use of evidence-based practice to guide critical care nursing. This framework ensures that nursing interventions are based on the best available evidence, leading to improved patient outcomes. Healthy work environment (B) and National Patient Safety Goals (C) are important but not specific frameworks for critical care nursing. The nursing process (D) is a systematic approach to delivering patient care but is not the primary guiding framework in critical care nursing practice.

Correct Answer: B

Rationale: The correct answer is B. Implementing a comprehensive oral care program is an intervention for preventing VAP. This statement is true because proper oral care, including brushing teeth, oral suctioning, and using chlorhexidine gluconate, has been shown to reduce the risk of VAP by decreasing the colonization of pathogenic bacteria in the oral cavity. Regular oral care helps maintain oral hygiene and reduce the risk of aspiration of bacteria into the lungs, which is a common cause of VAP. Incorrect Answer Analysis: A: Tooth brushing every 2 hours may be excessive and could potentially cause harm to the oral mucosa, leading to increased risk of infection. C: While oral suctioning and brushing teeth are important components of oral care, the statement is not comprehensive enough to address the full range of interventions needed to prevent VAP. D: While chlorhexidine gluconate can be effective in preventing VAP, the statement implies that it is the only effective intervention, which is not true.

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.

Correct Answer: C

Rationale: The correct answer is C (10 to 20 mg/dL). The normal BUN-to-creatinine ratio is approximately 10:1. With a serum creatinine level of 0.7 mg/dL, the expected BUN level should be around 7 to 14 mg/dL. Therefore, choice C (10 to 20 mg/dL) falls within this expected range. Choices A, B, and D are incorrect as they do not align with the typical BUN-to-creatinine ratio and would indicate abnormal kidney function.