To auscultate for a carotid bruit, the nurse places the stethoscope at what location (Select the correct location on the image. To change, click on a new location.)

A. Increase the fractional concentration of Inspired oxygen: As the partial pressure of oxygen (PaO) has decreased to 64 mm Hg from 99 mm Hg, and the oxygen saturation may drop, it's necessary to increase the fraction of inspired oxygen (FiO2) to maintain adequate oxygenation.
B. Change the ventilator settings to continuous positive airway pressure (CPAP): CPAP is not typically used in patients who are intubated. CPAP is a non-invasive ventilation mode used for patients with respiratory distress who are breathing spontaneously. In this case, the patient is intubated and requires mechanical ventilation, so CPAP is not appropriate.
C. Increase the respiratory rate: While the respiratory rate has decreased from 15 to 13 breaths/minute, it's important to maintain a careful balance when adjusting ventilator settings. Increasing the respiratory rate may not be necessary at this point, especially if the patient is still oxygenating adequately. Moreover, the primary concern appears to be hypoxemia rather than hypoventilation.
D. Continue weaning the ventilator as ordered: While weaning the patient off the ventilator is a goal, it may not be appropriate at this time, especially with the worsening blood gas values
indicating respiratory insufficiency. Continuing the weaning process could potentially exacerbate respiratory failure.

E. Decrease the tidal volume: Decreasing the tidal volume could worsen ventilation-perfusion matching and exacerbate hypoxemia. This approach might be considered in certain cases of acute respiratory distress syndrome (ARDS) or in patients with severe lung injury, but it's not typically indicated in this scenario without further assessment.

F. Alert the provider of the blood gas values: The nurse should inform the provider about the changes in blood gas values, especially the decrease in PaO2 and the increase in PaCO2, which indicate worsening respiratory status and potential respiratory acidosis.

G. Switch the ventilator to pressure control: Given the deterioration in respiratory status with an increase in PaCO2 and decrease in PaO2, switching to pressure control ventilation may provide better control over the patient's ventilation and oxygenation, especially in cases of acute
respiratory failure.

A. Provide high protein snacks. High protein snacks may exacerbate the symptoms of CKD by increasing urea and creatinine levels further. It is not recommended.
B. Administer PRN oxygen. Oxygen therapy is not indicated based on the symptoms described and the laboratory findings of elevated BUN and serum creatinine.
C. Monitor glucose levels every 4 hours. Monitoring glucose levels is not directly related to the symptoms described or the laboratory findings associated with CKD.
D. Schedule frequent rest periods. Fatigue and difficulty concentrating are common symptoms of CKD due to the buildup of waste products in the blood. Scheduling frequent rest periods can
help alleviate these symptoms and improve the client's overall well-being.