Critical Care Nursing Practice Questions

Correct Answer: C

Rationale: The correct answer is C because it involves patient-centered care and respects the family's preferences. By asking the family members whether they would prefer to remain in the patient's room or wait outside, the nurse acknowledges their needs and allows them to make an informed decision based on their comfort level. This empowers the family members and promotes a supportive environment during a stressful situation. Choice A is incorrect because it assumes that keeping the family in the room without their input is the best approach, which may not be the case for all families. Choice B is incorrect because asking the family to wait outside without considering their preferences may not be the most supportive action. Choice D is incorrect because it makes a blanket statement about patient comfort without considering individual family dynamics and preferences.

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.

Correct Answer: C

Rationale: The correct answer is C because a pulmonary artery occlusion pressure of 25 mm Hg indicates possible fluid overload or cardiac issue requiring urgent evaluation. This value is high, suggesting increased pressure in the left side of the heart. Additionally, the oxygen saturation of 89% on 3 L of oxygen indicates potential respiratory compromise. This patient needs immediate assessment and intervention to prevent worsening of their condition. Choice A is incorrect as a central venous pressure of 6 mm Hg is within normal limits, and the urine output is adequate. Choice B is incorrect as a BP of 110/60 mm Hg is acceptable, and a slightly dampened arterial waveform is not an immediate concern. Choice D is incorrect as a pulmonary artery pressure of 25/10 mm Hg is within normal range, and an oxygen saturation of 94% on 2 L of oxygen is acceptable.

Correct Answer: D

Rationale: The correct answer is D because brushing off any visible powder on the skin and clothing is the first step in managing exposure to powdered lime. This action helps to remove the source of exposure and prevent further absorption through the skin. It is crucial to prevent additional contact and reduce the risk of further harm. Obtaining vital signs (choice A) and a complete blood count (choice B) can be important but should come after the initial decontamination. Decontaminating the patient by showering with water (choice C) is not recommended for lime exposure as it can react with water and cause further injury.

Correct Answer: B

Rationale: The correct answer is B: Self-directed study of best practice for the patients she cares for. This choice aligns with the Synergy Model by promoting individualized patient care based on best practices. Self-directed study allows the nurse to enhance their knowledge and skills to provide optimal care tailored to each patient's unique needs. Attending mandatory in-service programs (A) may not directly support the individualized care approach. Gathering demographic data (C) is important but not specific to the Synergy Model's focus on patient acuity and nurse competencies. Participating in a research study (D) may contribute to evidence-based practice, but it does not directly relate to the Synergy Model's emphasis on aligning nurse competencies with patient needs.