Category: Uncategorized

An oxygen _____ compresses air and oxygen from a high-pressure source into a chamber where the pressure of the two gases is equalized, usually at 50 psi.

Which of the following are O2-conserving devices?1. Transtracheal oxygen catheters2. Reservoir cannulas3. Pulse-demand oxygen-delivery systems4. E size cylinder O2 tanks

Which of the following are advantages of nasal cannula use?1. They are cost-effective.2. They deliver precise FIO2.3. The patient can eat, speak, and drink with the cannula in place.4. Pressure necrosis will not occur.

If the maximum filling pressure is marked as 2050 lb-force per square inch gauge (psig), this cylinder is capable of holding _____ psig.

Which device allows in vitro ABG and pH measurements in a transport vehicle?

A CO-oximeter identifies the different types of hemoglobin through the use of:

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.

An 18-year-old with severe asthma is brought into the emergency department on an nonrebreathing mask; he is in acute respiratory distress. He has been given multiple rounds of bronchodilators and corticosteroids and is still in distress, with an SpO2 of 85% on the nonrebreathing mask. What therapy should the respiratory care practitioner suggest to the physician at this time?

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

Which of the following are the potential harmful effects of excessive amounts of oxygen therapy?1. Persistent pulmonary hypertension2. Oxygen-induced hypoventilation3. Absorption atelectasis4. Retinopathy or prematurity