It Has Been Determined That the Concentration of a Substance

It has been determined that the concentration of a substance is at IDLH. This means that patients exposed to the area:

A) are at risk for adverse effects or death as soon as they are exposed.
B) will suffer no adverse effects if they have been exposed for less than 15 minutes.
C) have a 50 percent likelihood of dying.
D) require transport and inpatient hospitalization.