A patient rescued from a house fire is wearing a high flow nasal cannula with 10 L/min of oxygen because of suspected carbon monoxide poisoning. A standard pulse oximeter on the patient’s right index finger shows a SpO2 value of 99%. An arterial blood gas sample is obtained and sent to the laboratory for analysis on a blood gas analyzer and a CO-oximeter. Results from the analyzer are as follows: pH 7.25 PaCO2 35 torr PaO2 349 torr HCO3– 10 mEq/L BE –14 mEq/L SaO2 (calc) 100% Results from the CO-oximeter are as follows: O2Hb 80% COHb 18% MetHb 2% Which result(s) should be followed to best assess the patient’s clinical status?

After a patient is intubated, the CO2 detector on the proximal end of the ET tube reads 2%. Which of the following should the respiratory therapist do at this time?

A patient’s PaO2 is 80 torr on a nonrebreathing mask, but the patient complains he can’t tolerate wearing the mask. Which of the following should the respiratory therapist recommend?

A patient on a ventilator has become agitated and combative, and the high-pressure alarm is sounding with each breath. To paralyze the patient to prevent him from fighting the ventilator, the respiratory therapist should recommend which of the following medications?

After a patient inhaled hypertonic saline for a sputum induction procedure, he begins to wheeze. What should be done at this time?

Which is the best indicator that your needle is in the epidural space?

A 54-year-old patient enters the emergency department with mild chest pain and shortness of breath. Oxygen is started at 3 L/min per nasal cannula. The ABGs drawn 30 minutes later are as follows: pH 7.36 PaCO2 44 mm Hg PaO2 62 mm Hg HCO3 24 mEq/L BE 0 mEq/L The respiratory therapist should recommend which of the following?

The respiratory therapist is having difficulty suctioning secretions from an adult patient’s tracheostomy tube. The suction pressure is set at -80 mm Hg. Which of the following is the most appropriate action?

Which pathology occurs when there is an arterial bleed between the skull and the dura mater?

Most cholesterol is made by the liver during what time?