The section of the pump that gradually increases in cross-sectional area as it nears the discharge outlet of the pump is the:

Which of the following factors would tend to increase the frictional component of the work of breathing?

1. Decreased compliance of the lungs or thorax 2. High frequencies of breathing 3. Increased Raw a. 1 and 2 only b. 1, 2, and 3 c. 1 and 3 only d. 2 and 3 only

Which of the following statements about pulse oximetry is? FALSE?

A) Oxygen saturation is the percentage of hemoglobin that is bound with some molecular structure. B) Pulse oximetry values can be expected to decrease within seconds in cases of developing hypoxia. C) Pulse oximetry should be used on all patients with respiratory complaints. D) It may be difficult to obtain a reading in patients experiencing peripheral vasoconstriction.