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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.

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

The maximum size catheter that can be used for a size 9.0 (ID) TT is ___ French.

A patient with chronic bronchitis is being discharged from the hospital. The simplest, most cost-efficient device to aid this patient with bronchial hygiene therapy is which of the following?

When a Macintosh type of laryngoscope blade is used, which of the following actions is most appropriate?

Theoretically, a nonrebreathing mask can deliver 100% oxygen, assuming that the mask fits appropriately on the patient’s face and is the only source of gas being inhaled by the patient. However, in actual practice, the disposable nonrebreathing mask can deliver what percentage of FIO2?

A pulse oximeter on a patient with a tracheostomy shows 89% saturation. The patient has a heated humidifier with a 40% air-entrainment tracheostomy collar. A rapid assessment shows no secretion production and equal breath sounds. Which of the following is the most appropriate first step?

One criterion for the use of a dry-powder inhaler is the patient’s ability to:

How many cubic centimeters do you need for a 2.5-mg dose of terbutaline sulfate, using a 0.1% solution?