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A patient has the following blood gas results: pH=7.34, PaCO2= 40, PaO2 = 75, Hb = 13, FIO2 = .21, HCO3 = 25, SaO2 = 93%, PECO2 = 20, VT = 200 ml, f = 32. What is the patient’s VD/VT?  

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?

Which of the following pieces of equipment would be LEAST appropriate for the victim of a house fire?

Wheezes and rhonchi are heard bilaterally after a patient aspirated gastric contents. The patient appears short of breath, has a cough producing copious, watery secretions and the SpO2 is 78%. The physician asks the respiratory therapist to initiate oxygen therapy.Which of the following types of oxygen administration devices should the therapist select for his patient?

Bedside spirometry performed on a patient reveals the following: Respiratory rate   =  22 Tidal volume        =  360 mL Dead space    =  150 mL Inspiratory capacity =  1.0 LBased on these data, what is the patient’s minute ventilation?

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?

Your patient has a IPPB tidal volume goal of 500 ml but is only exhaling 200 ml. What would you do to deliver a larger volume?

An ABG was obtained from a patient on CMV with continuous capnometer connected to the ventilatory circuit. The following ABG results and capnometer reading are as follows: pH – 7.35 PaCO2 – 50 mmHg PaO2 – 65 mmHg HCO3 – 25 mEq/L PETCO2 – 45 mmHg Four hours later the capnometer is reading at 60 mmHg. what is the actual PaCO2?

A patient is currently on oxygen therapy using a venturi mask at 35% running at 8 LPM. What is the total flow that is being delivered to the patient?