ATI RN
Critical Care Nursing Cardiac Questions Questions
Question 1 of 5
A mode of pressure-targeted ventilation that provides posiatbivirbe. cporme/tsessut re to decrease the workload of spontaneous breathing through what action by the endotracheal tube?
Correct Answer: C
Rationale: The correct answer is C: Pressure support ventilation. This mode delivers a set pressure to support each spontaneous breath, decreasing the workload of breathing. Pressure support ventilation assists the patient's inspiratory efforts without providing a set tidal volume like in volume-targeted ventilation. Continuous positive airway pressure (Choice A) maintains a constant level of positive pressure throughout the respiratory cycle but does not actively support spontaneous breathing efforts. Positive end-expiratory pressure (Choice B) maintains positive pressure at the end of expiration to prevent alveolar collapse but does not directly support spontaneous breathing. T-piece adapter (Choice D) is a weaning device that allows the patient to breathe spontaneously without ventilatory support.
Question 2 of 5
The nurse educator is evaluating the performance of a new registered nurse (RN) who is providing care to a patient who is receiving mechanical ventilation with 15 cm H2O of peak end-expiratory pressure (PEEP). Which action indicates that the new RN is safe?
Correct Answer: B
Rationale: The correct answer is B: The RN uses a closed-suction technique to suction the patient. This is the safe action because closed-suction technique minimizes the risk of ventilator-associated infections by maintaining a closed system during suctioning, reducing the exposure to pathogens. Closed-suction systems also help maintain lung compliance and oxygenation levels during the suctioning process. Rationale: Option A is incorrect because suctioning every 1 to 2 hours may be too frequent and can lead to hypoxia and mucosal damage. Option C is incorrect as taping the connection between the ventilator tubing and ET can interfere with the proper functioning of the ventilator and increase the risk of disconnection. Option D is incorrect because changing ventilator circuit tubing routinely every 48 hours is not evidence-based practice and can increase the risk of contamination and unnecessary costs.
Question 3 of 5
An unresponsive 79-year-old is admitted to the emergency department (ED) during a summer heat wave. The patient’s core temperature is 105.4°F (40.8°C), blood pressure (BP) 88/50, and pulse 112. The nurse initially will plan to:
Correct Answer: A
Rationale: The correct answer is A: Apply wet sheets and a fan to the patient. This is the initial treatment for hyperthermia to aid in lowering the body temperature. Wet sheets help in evaporative cooling, while a fan enhances heat loss through convection. This approach is crucial in managing heat-related illnesses quickly. Choices B, C, and D are incorrect as they do not directly address the urgent need to reduce the patient's elevated core temperature. Providing O2, IV fluids, or acetaminophen can be considered later in the management, but the priority is to rapidly lower the body temperature in a hyperthermic patient to prevent further complications.
Question 4 of 5
The patient diagnosed with acute respiratory distress synd rome (ARDS) would exhibit which symptom?
Correct Answer: A
Rationale: The correct answer is A because in ARDS, there is a severe impairment in gas exchange leading to hypoxemia. Decreasing PaO2 levels despite increased FiO2 administration indicate poor oxygenation, a hallmark of ARDS. Elevated alveolar surfactant levels (Choice B) do not directly correlate with ARDS pathophysiology. Increased lung compliance with increased FiO2 administration (Choice C) is not characteristic of ARDS, as ARDS leads to decreased lung compliance. Respiratory acidosis associated with hyperventilation (Choice D) is not a typical finding in ARDS, as hyperventilation is usually present in an attempt to compensate for hypoxemia.
Question 5 of 5
A new nurse has recently joined the ICU from a different hospital, which had a much stricter policy regarding visiting hours. She expresses concern about the impact of open visiting hours on patient well-being. Which of the following would be the best explanation for the purpose of open visiting hours? Select all that apply.
Correct Answer: B
Rationale: The correct answer is B: To strengthen the relationship between the family and health care provider. Rationale: 1. Open visiting hours encourage family involvement in care, fostering a partnership between healthcare providers and families. 2. Family support can positively impact patient outcomes and satisfaction. 3. It allows families to be updated on the patient's condition and involved in decision-making. 4. Strengthening the relationship can lead to better communication and trust between all parties. Summary of Incorrect Choices: A: Open visiting hours may disrupt rest and quiet, but the primary purpose is not to provide rest. C: Open visiting hours do not aim to control the number of visitors but rather encourage family involvement. D: While open visiting hours may not provide an entirely undisturbed environment, the focus is on improving family-provider relationships.