CLIA has established three categories of testing: ________ tests, moderate complexity tests, and high-complexity tests

Oxygen delivery using a nasal cannula at 1–6 liters per minute provides oxygen concentrations between:

a. 80–100 percent b. 20–21 percent c. 24–44 percent d. 60–80 percent

The effects of sympathetic stimulation of the iris are:

A. vasoconstriction B. relaxation (for far vision) C. contraction of the circular muscle and pupil constriction D. contraction of the radial muscle and pupil dilation