ATI RN
Critical Care Nursing Questions and Answers PDF Questions
Question 1 of 9
A patient is having difficulty weaning from mechanical ve ntilation. The nurse assesses the patient and notes what potential cause of this difficult weaning?
Correct Answer: B
Rationale: The correct answer is B: Hemoglobin of 8 g/dL. Low hemoglobin levels can lead to inadequate oxygen delivery to tissues, causing respiratory distress and difficulty weaning from mechanical ventilation. This is due to reduced oxygen-carrying capacity leading to increased work of breathing. A: Cardiac output of 6 L/min is within normal range and not directly related to difficulty weaning from mechanical ventilation. C: Negative sputum culture and sensitivity indicate absence of respiratory infection but not a direct cause of difficulty weaning. D: White blood cell count of 8000 is within normal range and not a direct cause of difficulty weaning.
Question 2 of 9
The patient’s spouse is very upset because the patient, who is near death, has dyspnea and restlessness. The nurse explains what options to decrease the discomfort?
Correct Answer: B
Rationale: The correct answer is B: Opioid medications given as needed. Opioids are indicated for managing dyspnea and restlessness in palliative care by providing relief from symptoms. They act as potent analgesics and can help decrease the distress associated with difficult breathing and restlessness. Respiratory therapy treatments (A) and incentive spirometry treatments (C) may not address the immediate discomfort caused by dyspnea and restlessness. Increased hydration (D) may not directly alleviate the symptoms and could potentially worsen the patient's discomfort.
Question 3 of 9
When fluid is present in the alveoli what is the result?
Correct Answer: A
Rationale: The correct answer is A: Alveoli collapse and atelectasis occurs. When fluid is present in the alveoli, it impairs the surface tension necessary for the alveoli to remain open, leading to collapse and atelectasis. This prevents proper gas exchange, resulting in hypoxemia. Choice B is incorrect because impaired gas diffusion typically occurs with conditions affecting the alveolar-capillary membrane, not fluid in the alveoli. Choice C is incorrect as hypoventilation refers to decreased ventilation, not specifically related to fluid in the alveoli. Choice D is incorrect as fluid in the alveoli is not a direct indicator of heart failure.
Question 4 of 9
The nurse is caring for a patient admitted with a traumatic brain injury following a motor vehicle crash. The patient’s Glasgow Coma Score is 3 anda binirbte.cromm/ittetset ntly withdraws when painful stimuli are introduced. The patient is ventilator dependent and occasionally takes a spontaneous breath. The primary care provider explains to the family that the patient has severe neurological impairment and it is not expected that the patient will ever recover consciousness. What concept does this situation depict?
Correct Answer: C
Rationale: The correct answer is C: A persistent vegetative state. This choice is correct because the patient exhibits minimal responsiveness, only withdrawing to painful stimuli, and lacks meaningful interaction or consciousness. A persistent vegetative state is characterized by preserved wakefulness without awareness, which aligns with the patient's condition. Choice A: An organ donor is incorrect because the patient's neurological impairment does not necessarily indicate readiness for organ donation. Choice B: Brain death is incorrect because the patient still exhibits some reflexive responses, indicating a level of brain function beyond brain death. Choice D: Terminally ill is incorrect as it does not specifically address the patient's neurological status and prognosis, which is better described by a persistent vegetative state.
Question 5 of 9
The critical care environment is stressful to the patient. Which interventions assist in reducing this stress? (Select all that apply.)
Correct Answer: A
Rationale: Correct Answer: A. Adjust lighting to promote normal sleep-wake cycles. Rationale: 1. Adjusting lighting can help regulate the patient's circadian rhythm, promoting better sleep and reducing stress. 2. Normal sleep-wake cycles are crucial for overall well-being and healing in a critical care setting. 3. Proper lighting can also create a more calming environment for the patient. Summary of Incorrect Choices: B. Providing clocks, calendars, and personal photos can be overwhelming for a stressed patient. C. Talking about other patients may increase anxiety and breach patient confidentiality. D. Telling the day and time of routine interventions may disrupt the patient's sense of time and add to stress.
Question 6 of 9
Which of the following patients is at the greatest risk of developing acute kidney injury? A patient who
Correct Answer: D
Rationale: The correct answer is D because a patient with a history of fluid overload due to heart failure is at the greatest risk of developing acute kidney injury. Heart failure can lead to decreased kidney perfusion causing acute kidney injury. In this scenario, the patient's fluid overload exacerbates the situation, further compromising kidney function. Choice A is incorrect as aminoglycosides can cause kidney injury but the duration of 6 days is less concerning compared to chronic fluid overload from heart failure in choice D. Choice B is incorrect because controlled hypertension does not directly increase the risk of acute kidney injury. Choice C is incorrect as the patient being discharged 2 weeks earlier after aminoglycoside therapy does not necessarily indicate a higher risk compared to chronic fluid overload.
Question 7 of 9
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.
Question 8 of 9
A patient in a critical care unit has increased stress from the constant noise and light levels. What nursing intervention best attenuates these sources of stress?
Correct Answer: B
Rationale: The correct answer is B: Dimming lights during the night. This intervention helps reduce stress by creating a more calming environment, promoting rest and sleep. Constant observation (choice A) may increase stress due to lack of privacy. Frequent group rounds (choice C) may disrupt rest. Use of tile floors (choice D) is unrelated to addressing noise and light stress.
Question 9 of 9
The nurse is counseling a family about end-of-life care for their loved one. Which statement by the family indicates understanding of palliative care?
Correct Answer: A
Rationale: The correct answer is A because palliative care indeed focuses on providing relief from pain and other symptoms, enhancing quality of life for patients with serious illnesses. This aligns with the essence of palliative care, which is to provide holistic support to improve comfort and well-being. The other choices are incorrect: B is wrong because palliative care does not aim to cure the underlying disease but rather to alleviate suffering; C is incorrect as palliative care can be initiated earlier in the disease trajectory, not just during the final days; and D is inaccurate because patients can continue receiving treatments alongside palliative care to manage symptoms and improve their quality of life.