A patient with acute respiratory failure due to pneumonia is receiving high flow nasal cannula (HFNC) therapy. When assessing the patient’s response, which of the following patient factors would influence your decision to escalate or de-escalate HFNC therapy?

If a patient is on a 6L nasal cannula, what is the approximate FIO2?

The QRS wave on the EKG indicates which of the following:

The indexing system that applies to medical gas cylinders size E and smaller is known as which system?

Low-flow O2 delivery systems used in respiratory care include all of the following except:

What is the usual method of monitoring the remaining contents in a liquid-filled cylinder?

A respiratory therapist is monitoring a patient with tracheostmy. The patient is recieving oxygen at an FIO2 of .40 by T-piece with a flowmeter setting of 8 L/min. No mist is visible during inspiration. Which of the following should the therapist do?

A physician orders a 70% He:30% O2 mixture to reduce the work of breathing in a patient having an acute asthmatic attack. Which of the following delivery systems would be appropriate in this case?

Which of the following statements is false about low-flow O2 delivery systems?

A patient with a peak inspiratory flow of 50 L/min is to receive 28% oxygen via venturi mask. What is the minimum oxygen flow required?