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
How should the nurse interprets these blood gas values? 2 3
Correct Answer: C
Rationale: The correct interpretation is uncompensated respiratory acidosis (Choice C) based on the values. Step 1: Evaluate pH - pH is <7.35, indicating acidosis. Step 2: Determine PaCO2 - PaCO2 is >45 mmHg, indicating respiratory cause. Step 3: Check HCO3- - HCO3- is within normal range, indicating uncompensated state. Choices A, B, and D are incorrect because they do not align with the given blood gas values.
Question 3 of 5
assessment, the patient is restless, heart rate has increased to 110 beats/min, respirat ions are 36 breaths/min, and blood pressure is 156/98 mm Hg. The cardiac monitor shows sin us tachycardia with 10 premature ventricular contractions (PVCs) per minute. Pulmonary artery pressures are elevated. The nurse suctions the patient and obtains pink, frothy secretio ns. Loud crackles are audible throughout lung fields. The nurse notifies the physician, who orders an ABG analysis, electrolyte levels, and a portable chest x-ray study. In comambirubn.ciocma/tteinstg with the physician, which statement indicates the nurse understands what is likely occurring with the patient?
Correct Answer: B
Rationale: The correct answer is B: “My assessment indicates potential fluid overload.” The patient is showing signs of fluid overload, such as increased heart rate, respiratory rate, elevated blood pressure, pulmonary artery pressures, frothy secretions, and crackles in lung fields. These symptoms suggest fluid is accumulating in the lungs, causing pulmonary congestion. This can lead to impaired gas exchange and respiratory distress. The nurse's recognition of these signs is crucial for prompt intervention to prevent further complications. Other choices are incorrect because there are no indications of a myocardial infarction, PVCs compromising cardiac output, or a hypertensive crisis based on the given information.
Question 4 of 5
The nurse is caring for a mechanically ventilated patient an d responds to a high inspiratory pressure alarm. Recognizing possible causes for the alarma, btihrbe.c nomu/rtesset assesses for which of the following? (Select all that apply.)
Correct Answer: B
Rationale: The correct answer is B: Disconnection from the ventilator. This is the correct choice because a high inspiratory pressure alarm can indicate a disconnection, leading to inadequate ventilation and increased pressure in the circuit. This can be a life-threatening situation that requires immediate attention. Explanation of why other choices are incorrect: A: Coughing or attempting to talk - While coughing or talking may affect the patient's ability to ventilate properly, it is not directly related to the high inspiratory pressure alarm. C: Kinks in the ventilator tubing - Kinks in the tubing may cause increased resistance to airflow, but they are more likely to trigger a low pressure alarm rather than a high inspiratory pressure alarm. D: Need for suctioning - Suctioning may be necessary for airway clearance, but it is not directly related to the high inspiratory pressure alarm.
Question 5 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.