Veins act as a bridge between capillaries and arteries.

________ Capillary blood collection tubes that contain heparin (to prevent clotting) are identified by a red mark

Indicate whether the statement is true or false

A critical incident is MOST accurately defined as:

A) a delayed stress reaction to an incident that is similar to what has been experienced in the past. B) a situation that completely incapacitates a person's ability to cope with the acute stress reaction at the scene. C) any incident that completely overwhelms a paramedic's ability to manage the short-term stress caused by the incident. D) an incident that overwhelms the ability of an EMS worker or system to cope with the experience, either at the scene or later.