Which of the following statements is true concerning the use of dry-powder inhalers?

What type of instrument could be used to analyze pH, PO2, PCO2, and various electrolytes at the patient’s bedside?

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 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.

In high concentrations, which of the following gases is a potent anesthetic?

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.

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

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.

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

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