ATI RN
Critical Care Nursing NCLEX Questions Questions
Question 1 of 5
Which hemodynamic parameter is most appropriate for the nurse to monitor to determine the effectiveness of medications given to a patient to reduce left ventricular afterload?
Correct Answer: B
Rationale: The correct answer is B: Systemic vascular resistance (SVR). SVR reflects the resistance the heart must overcome to pump blood into the systemic circulation. By monitoring SVR, the nurse can assess the effectiveness of medications aimed at reducing left ventricular afterload, as these medications work by dilating blood vessels and reducing resistance. An effective reduction in afterload would lead to a decrease in SVR. A: Mean arterial pressure (MAP) is an indicator of perfusion pressure but may not directly reflect changes in afterload. C: Pulmonary vascular resistance (PVR) is specific to the pulmonary circulation and not directly related to left ventricular afterload. D: Pulmonary artery wedge pressure (PAWP) is a measure of left ventricular preload and filling pressures, not afterload.
Question 2 of 5
The nurse is caring for a patient who has an intra-aortic balloon pump in place. Which action should be included in the plan of care?
Correct Answer: C
Rationale: The correct answer is C: Measure the patient’s urinary output every hour. This is crucial because monitoring urinary output is essential in assessing the patient’s renal function and the effectiveness of the intra-aortic balloon pump in improving cardiac output. Hourly measurement helps in early detection of any changes that may indicate complications. A: Positioning the patient supine at all times is not necessary and can lead to complications. B: Avoiding the use of anticoagulant medications is not appropriate as they are often necessary to prevent clot formation around the balloon pump. D: Providing a massive range of motion for all extremities is not recommended for a patient with an intra-aortic balloon pump as it can dislodge the device or cause harm.
Question 3 of 5
The nurse notes thick, white secretions in the endotracheal tube (ET) of a patient who is receiving mechanical ventilation. Which intervention will be most effective in addressing this problem?
Correct Answer: D
Rationale: The correct answer is D: Instill 5 mL of sterile saline into the ET before suctioning. This intervention helps to loosen and mobilize the thick secretions, making them easier to remove during suctioning. It is important to moisten the secretions to prevent mucosal damage and trauma during suctioning. A: Increasing suctioning frequency can lead to mucosal damage and increased risk of infection. B: Repositioning helps with ventilation and preventing pressure injuries, but it does not directly address the thick secretions. C: Adding water to enteral feedings will not directly address the thick secretions in the ET. In summary, instilling sterile saline into the ET before suctioning is the most effective intervention as it helps to loosen and mobilize thick secretions, making suctioning more effective and reducing the risk of mucosal damage.
Question 4 of 5
When evaluating a patient with a central venous catheter, the nurse observes that the insertion site is red and tender to touch and the patient’s temperature is 101.8°F. What should the nurse plan to do next?
Correct Answer: B
Rationale: The correct answer is B: Discontinue the catheter and culture the tip. The patient's symptoms indicate a possible catheter-related infection. Discontinuing the catheter will prevent further infection spread. Culturing the tip will identify the specific pathogen causing the infection, guiding appropriate antibiotic therapy. Choice A is incorrect because giving analgesics alone will not address the underlying infection. Choice C is incorrect as changing the flush system is not a priority when infection is suspected. Choice D is incorrect as checking the site more frequently does not address the need for immediate action to address the infection.
Question 5 of 5
The nurse educator is evaluating the care that a new registered nurse (RN) provides to a patient receiving mechanical ventilation. Which action by the new RN indicates the need for more education?
Correct Answer: D
Rationale: The correct answer is D because positioning the patient with the head of the bed at 10 degrees is incorrect for a patient receiving mechanical ventilation. The optimal position for such patients is to elevate the head of the bed to 30-45 degrees to prevent aspiration and improve oxygenation. Option A is incorrect as increasing FIO2 before suctioning is appropriate to ensure adequate oxygenation. Option B is incorrect as securing a bite block in place using adhesive tape is a standard practice to prevent the patient from biting on the endotracheal tube. Option C is incorrect as asking for assistance to reposition the endotracheal tube shows the RN is aware of the importance of proper placement to ensure effective ventilation.