Questions 9

ATI RN

ATI RN Test Bank

Critical Care Nursing Questions and Answers PDF Questions

Question 1 of 5

What is the primary mode of action of a neuromuscular bl ocking agent?

Correct Answer: C

Rationale: The correct answer is C: Paralysis. Neuromuscular blocking agents work by blocking the transmission of nerve impulses at the neuromuscular junction, leading to muscle paralysis. This paralysis helps facilitate intubation, surgical procedures, and mechanical ventilation. A: Analgesia - Neuromuscular blocking agents do not provide pain relief; they primarily induce muscle paralysis without affecting pain sensation. B: Anticonvulsant - Neuromuscular blocking agents do not prevent or treat seizures; their mechanism of action is not related to controlling convulsions. D: Sedation - Neuromuscular blocking agents do not induce sedation; they specifically target the neuromuscular junction to cause muscle paralysis.

Question 2 of 5

Two unlicensed assistive personnel (UAP) are arguing on the unit about who deserves to take a break first. What is the most important basic guideline that the nurse should follow in resolving the conflict?

Correct Answer: D

Rationale: The correct answer is D: Deal with issues and not personalities. This guideline is important because it focuses on resolving the conflict based on the actual problem at hand, rather than personal biases or emotions. By addressing the issues causing the argument, the nurse can help the UAPs find a fair and logical solution. A: Requiring the UAPs to reach a compromise may not address the root cause of the conflict and could lead to further disagreements. B: Weighing the consequences is important but may not be as effective in resolving the conflict as directly addressing the issues. C: Encouraging humor may temporarily diffuse the situation but may not lead to a lasting resolution.

Question 3 of 5

The patient is diagnosed with acute kidney injury and has been getting dialysis 3 days per week. The patient complains of general malaise and is tachypneic. An arterial blood gas shows that the patient’s pH is 7.19, with a PCO of 30 mm Hg and a bicarbonate level of 13 mEq/L. The nurse prepares to

Correct Answer: C

Rationale: The correct answer is C: administer intravenous sodium bicarbonate. In this case, the patient has metabolic acidosis with a low pH and low bicarbonate levels. Administering sodium bicarbonate can help correct the acidosis by increasing the bicarbonate levels and improving the pH. This treatment is essential to address the underlying metabolic imbalance. Choice A is incorrect because administering morphine would not address the root cause of the acidosis and could potentially worsen the respiratory status. Choice B is incorrect as intubation and mechanical ventilation are not indicated solely based on the acid-base imbalance. Choice D is also incorrect as canceling the dialysis session would not address the metabolic acidosis and could potentially worsen the patient's condition.

Question 4 of 5

Which action by the nurse demonstrates cultural sensitivity in end-of-life care?

Correct Answer: C

Rationale: The correct answer is C because inquiring about specific cultural rituals and preferences shows respect for the patient's cultural beliefs and values. By asking about these aspects, the nurse can provide care that aligns with the patient's cultural background, promoting comfort and understanding. This action also demonstrates a commitment to individualized care. Choice A is incorrect because standardized care may not always be culturally appropriate. Choice B is incorrect as avoiding discussions about death can hinder effective communication and support. Choice D is incorrect as advising families to strictly follow hospital guidelines may overlook the importance of cultural considerations in end-of-life care.

Question 5 of 5

What does pulse oximetry measure?

Correct Answer: D

Rationale: Pulse oximetry measures oxygen saturation in the blood by analyzing the absorption of light by hemoglobin. Oxygen saturation indicates the percentage of hemoglobin molecules carrying oxygen. This is essential for assessing respiratory function and oxygen delivery to tissues. Arterial blood gases (Choice A) directly measure oxygen and carbon dioxide levels in the blood, not specifically oxygen saturation. Hemoglobin values (Choice B) provide information about the amount of hemoglobin present but not its oxygen-carrying capacity. Oxygen consumption (Choice C) is a measure of how much oxygen is used by tissues, not what pulse oximetry directly measures.

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