Critical Care Nursing NCLEX Questions

Correct Answer: B

Rationale: The correct answer is B (80 to 125 mL/min) because this range reflects the normal glomerular filtration rate (GFR) in adults. GFR measures the rate at which blood is filtered by the kidneys, typically around 125 mL/min. A GFR below 60 mL/min indicates kidney dysfunction, making option A incorrect. Option C (125 to 180 mL/min) is above the normal range. Option D (more than 189 mL/min) is too high and could indicate hyperfiltration, common in conditions like diabetes. Therefore, choice B is the most appropriate within the normal GFR range.

Correct Answer: C

Rationale: The correct answer is C, the 86-year-old postoperative from colonic resection. This patient is at the greatest risk for delirium due to being elderly, having undergone surgery, and having a history of being from a nursing home. These factors contribute to an increased susceptibility to delirium. A: The 36-year-old with alcohol withdrawal may be at risk for delirium tremens, but the older age of the patient in choice C places them at higher risk. B: The 54-year-old with an elevated creatinine level postoperative is at risk for complications, but age and history of nursing home placement increase the risk for delirium in choice C. D: The 95-year-old with community-acquired pneumonia is at risk for delirium, but the combination of age, surgery, and nursing home history in choice C presents a greater risk.

Correct Answer: A

Rationale: Step 1: Families benefit by witnessing that everything possible was done during resuscitation and invasive procedures. Step 2: This reassures families that healthcare providers are doing their best to save the patient. Step 3: It can provide closure and comfort to families knowing that all efforts were made. Step 4: This transparency can also help in the grieving process for families. Summary: Choice A is correct because it highlights the emotional and psychological benefits for families. Choices B, C, and D are incorrect as they do not align with the positive impacts of allowing family presence during resuscitation and invasive procedures.

Correct Answer: C

Rationale: The correct answer is C: Dobutamine infusion. In this scenario, the patient is experiencing hypovolemic shock due to significant blood loss, resulting in low blood pressure, tachycardia, and low cardiac output. Dobutamine is a positive inotropic agent that increases cardiac contractility and output, helping to improve tissue perfusion. Blood transfusion (A) is a common intervention for hypovolemic shock, but in this case, the patient's hematocrit is low, indicating dilutional anemia rather than acute blood loss, so addressing the cardiac output is more urgent. Furosemide (B) is a diuretic that would exacerbate the hypovolemia and worsen the patient's condition. Dopamine (D) is a vasopressor that primarily increases blood pressure, but in this case, the patient's low cardiac output is the main concern, making dobutamine a more appropriate choice.

Correct Answer: B

Rationale: The correct answer is B because withdrawal is a common psychological response in the dying process. The nurse should explain to the son that his mother's lack of response may be her way of preparing to leave life. This response validates the son's concerns while providing reassurance. Choice A is incorrect because cutting back visits may not address the underlying issue of the mother's withdrawal. Choice C is incorrect because stimulating the mother may not be beneficial or appropriate in this situation. Choice D is incorrect because not all patients experience a lack of awareness at the end of life, and assuming so may not be helpful in this context.