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

A patient has undergone surgery and is receiving continuous supplemental oxygen via a 30% air-entrainment mask. He or she becomes pale and short of breath during incentive spirometry. Pulse oximetry reveals a significant drop in oxygen saturation during incentive spirometry. The respiratory therapist should do which of the following for subsequent incentive spirometry therapy?

Indications for incentive spirometry include:

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?

Indications for the use of warm, humidified gas are which of the following?1. Patients with hypothermia2. Patients with croup3. Patients with bronchospasm4. Patients with postextubation edema

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.

If a portable liquid oxygen reservoir is set to deliver 6 L/min and the current reservoir weight is 38 lb, it will take _____ hours for the reservoir to empty if the weight of an empty container is 10 lb.

Untreated atelectasis can result in which of the following?1. Decreased shunting2. Increased shunting3. Hypercapnia4. Hypocapnia

Which of the following procedures should be followed in setting up a compressed gas cylinder at a patient’s bedside?1. Inspect the cylinder and valve for dirt, debris, and oil.2. Make sure the cylinder is properly secured.3. Tighten the regulator with a pipe wrench.4. Open the cylinder valve completely.

In theory, a nasal cannula can deliver what amount of FIO2 to a patient?