Where can a full definition of all modifiers be found?

Which of the following patient factors increases the criticality of the patient's burn injuries?

A) Taking antidepressants B) Male gender C) Prior history of burns D) Being in the geriatric age group

In accordance to 49 C.F. R. 172.510, a rail car transporting placard poisoning materials are required to have what type of identifying marking?

a. A square with a red background and white lettering and no border b. A square with a yellow background and white lettering and border c. A square with a white background and black lettering and border d. A square with a black background and white lettering and border