In a partial pressure of oxygen (PCO2) electrode, carbon dioxide does which of the following?1. It reacts with potassium chloride.2. It reacts with water to form carbonic acid.3. It diffuses through a polyethylene membrane.4. It diffuses through a semipermeable Teflon membrane.

One liter of liquid oxygen is equivalent to _____ liters of gaseous oxygen.              14:m1:o12

Which of the following variables are measured directly by a blood gas machine?I. pHII. PaO2III. HCO3–IV. SaO2

How many liters/minute of air is being entrained for a 50% air-entrainment mask running at 8 L/min?

A patient has a 0.40 air-entrainment mask on and is not tolerating it well at this time because of claustrophobia. A nasal cannula is placed on the patient. What liter flow should be set to match the appropriate FIO2?

A patient has a heated air-entrainment large-volume jet nebulizer. The aerosol disappears completely during each inspiration. The most-appropriate action to take is to:

The most appropriate method for opening the airway of an awake patient with a fractured mandible is which of the following?

A patient has a 0.40 air-entrainment mask on and is not tolerating it well at this time because of claustrophobia. A nasal cannula is placed on the patient. What liter flow should be set to match the appropriate FIO2?

A female patient’s chest radiograph shows bilateral lower lobe atelectasis. She is alert and oriented. Arterial blood gas analysis reveals mild hypoxemia and respiratory alkalemia; her vital signs are within normal limits. Which of the following is most appropriate at this time?

Which of the following is appropriate to provide humidity to a patient with cold air reactive airways?