Questions 9

ATI RN

ATI RN Test Bank

Critical Care Nursing Practice Questions Questions

Question 1 of 5

The nurse caring for a patient diagnosed with acute respiratory failure identifies “Risk for Ineffective Airway Clearance” as a nursing diagnosis. Wh at nursing intervention is relevant to this diagnosis?

Correct Answer: A

Rationale: The correct answer is A: Elevate head of bed to 30 degrees. Elevating the head of the bed helps promote optimal airway clearance by facilitating drainage of secretions and reducing the risk of aspiration. This position also improves lung expansion and oxygenation. Choice B is important for preventing venous thromboembolism but not directly related to airway clearance. Choice C may not be appropriate as excessive sedation can impair airway clearance. Choice D is important for preventing pressure ulcers but does not directly address airway clearance.

Question 2 of 5

Four hours after mechanical ventilation is initiated for a patient with chronic obstructive pulmonary disease (COPD), the patient’s arterial blood gas (ABG) results include a pH of 7.51, PaO2 of 82 mm Hg, PaCO2 of 26 mm Hg, and HCO3 of 23 mEq/L (23 mmol/L). The nurse will anticipate the need to:

Correct Answer: D

Rationale: The correct answer is D: Decrease the respiratory rate. The ABG results show respiratory alkalosis with decreased PaCO2 and elevated pH. This indicates overventilation, so decreasing the respiratory rate will help normalize the PaCO2 and pH levels. Increasing the FIO2 (Choice A) is not needed as the PaO2 is within normal range. Increasing tidal volume (Choice B) can lead to further hyperventilation. Increasing the respiratory rate (Choice C) would exacerbate the respiratory alkalosis.

Question 3 of 5

The condition of a critically ill patient with a living will has deteriorated. The patient’s partner wants “everything done,” regardless of the patient’s wishe s. Which ethical principle is the partner violating?

Correct Answer: A

Rationale: The correct answer is A: Autonomy. Autonomy is the ethical principle that respects an individual's right to make decisions about their own care and treatment. In this scenario, the partner wanting "everything done" regardless of the patient's wishes violates the patient's autonomy by not honoring their previously expressed wishes outlined in the living will. This decision disregards the patient's right to make choices about their own healthcare. Choices B, C, and D are incorrect because: B: Beneficence focuses on doing good for the patient, but in this case, the partner's actions are not necessarily in the patient's best interest. C: Justice pertains to fairness and equal treatment, which is not directly relevant to the situation described. D: Nonmaleficence is the principle of doing no harm, but in this scenario, the harm is not necessarily physical but rather a violation of the patient's autonomy.

Question 4 of 5

The primary health care provider writes an order to discon tinue a patient’s left radial arterial line. When discontinuing the patient’s invasive line, what is the priority nursing action?

Correct Answer: B

Rationale: The correct answer is B: Apply pressure to the insertion site for 5 minutes. This is the priority nursing action because it helps prevent bleeding and hematoma formation after removing the arterial line. Applying pressure for 5 minutes allows for adequate hemostasis. A: Applying an air occlusion dressing to the insertion site is not the priority action. It does not address the immediate need to control bleeding. C: Elevating the affected limb on pillows for 24 hours is not necessary and does not address the immediate need for hemostasis. D: Keeping the patient's wrist in a neutral position is not the priority action when discontinuing an arterial line. It does not address the need for hemostasis and preventing bleeding.

Question 5 of 5

A patient’s vital signs are pulse 87, respirations 24, BP of 128/64 mm Hg, and cardiac output is 4.7 L/min. The patient’s stroke volume is ______ mL. (Round to the nearest whole number.)

Correct Answer: A

Rationale: The stroke volume is calculated by dividing the cardiac output by the heart rate. Given the cardiac output of 4.7 L/min and a heart rate of 87 bpm, the stroke volume is 54 mL (4700 mL/87 bpm ≈ 54 mL). Therefore, choice A (54) is the correct answer. Choices B, C, and D are incorrect as they do not match the calculated stroke volume based on the provided cardiac output and heart rate.

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