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Airway resistance (Raw) of 1.8 cmH2O/L/sec is measured for a patient receiving mechanical ventilation. The respiratory therapist should suspect that the patient may have

When using A/C volume-control ventilation, dynamic hyperinflation is a significant concern in patients with which condition?

A mechanically ventilated patient suddenly shows a sudden rise in end-tidal CO₂, and a repeat measurement confirms the same results. Which situation could explain this change?

A patient with multiple traumatic injuries from a motor vehicle collision is receiving oxygen by nasal cannula at 3 L/min. Vital signs are: HR 115/min, RR 30/min, and BP 89/60 mmHg. The pulse oximeter displays an SpO₂ of 69%. Which action should the respiratory therapist take to maximize the patient’s FiO2?

A patient receiving pressure-controlled ventilation has acute hypoventilation with an ETCO2 of 70 torr. His vital signs include: HR 90/min, RR 18/min, SpO2 94%. Which of the following change(s) will address the situation? 1. Increase the pressure limit 2. Increase the sensitivity 3. Increase the mandatory rate 4. Decrease the inspiratory time A patient on pressure-controlled ventilation is showing signs of acute hypoventilation, evidenced by an ETCO₂ of 75 mmHg. His vital signs are: HR 95/min, RR 16/min, and SpO₂ 93%. Which of the following ventilator adjustments would correct the hypoventilation? Increase the pressure limit Increase the sensitivity Increase the mandatory respiratory rate Decrease the inspiratory time

A 35-year-old patient in the ED has been intubated with a 6.5 endotracheal tube. The respiratory therapist notes that a cuff pressure of 44 cm H2O is necessary to achieve a minimal occluding volume. What does this indicate?

What is the primary reason for the use of respiratory care protocols?

A patient receives oxygen via nasal cannula at 1 L/min and the following ABG results: pH 7.35, PaCO2 36, PaO2 82, HCO3- 39. What is the most likely explanation for these results?

Which of the following values for PaCO2 is consistent with alveolar hypoventilation?

While performing oxygen rounds and measuring SpO₂ on multiple patients, the respiratory therapist must clean the pulse oximeter between uses. Which disinfecting solution is most appropriate for wiping down the pulse oximeter surface?