5. In the presence of irritation, the vocal cords can spasm, closing the glottic opening. This is known as:

General principles for backing up an ambulance include:

A) using one spotter for each side of the ambulance. B) keeping the window up to avoid any distractions. C) not using audible warning devices so you can hear. D) stopping the vehicle if you lose sight of your spotter.

Capillary blood for a microhematocrit should be collected in ____________________ tubes.

Fill in the blank(s) with the appropriate word(s).