The relationship between alveolar blood flow and alveolar airflow is called the:

What is the first step in converting metric system units involving prefixes using Approach 1?

A) Determine the equivalence of the starting and target factors. B) Locate the starting prefix and the target prefix and note their corresponding factors. C) Locate the starting prefix and the target prefix and note their corresponding powers of 10. D) Set up an equation of ratios and cross-multiply.

The concentration of oxygen delivered to the patient with an air-entrainment mask depends on which of the following?

1. Flow of the oxygen exiting the jet nozzle 2. Size of the jet nozzle outlet 3. Size of the entrainment port 4. Size of the Venturi mask a. 1, 2, and 3 c. 1, 2, and 4 b. 2, 3, and 4 d. 3 and 4