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

The type of station outlet connection that uses noninterchangeable thread fittings to connect gas-powered devices to station outlets is known as:

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

Which is the correct sequence of events when one is obtaining arterial blood from the radial artery of a patient?I. Perform the modified Allen’s test.II. Remove any air bubbles from the sample.III. Apply direct pressure to the puncture site.IV. Clean the puncture site with a suitable antiseptic solution.V. Use a 23-gauge needle and a plastic syringe containing an anticoagulant.

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

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

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.

According to the American Association for Respiratory Care (AARC) Clinical Practice Guideline (2002 Revision & Update), which of the following are considered precautions or complications of oxygen therapy?1. A PaO2 >60 mm Hg in spontaneously breathing patients with chronic PaCO2 levels2. With FIO2 >0.50 and the risk of oxygen toxicity or absorption atelectasis occurring3. During laser bronchoscopy and high levels of oxygen4. Acute myocardial infarction

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

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.