Question

which of the following items should a medical assistant dispose of in a biohazard waste bag?
gauze that fell on the ground
a used needle
gauze contaminated with blood
a used mask

Explanation:

Biohazard waste bags are used for materials that pose a biological risk. Gauze contaminated with blood can carry pathogens and is a biohazard. Gauze that fell on the ground (unless it was sterile and now non - sterile, but not a biohazard in the same sense as blood - contaminated), a used needle (goes in a sharps container), and a used mask (depending on context, but not typically blood - contaminated biohazard like the described gauze) are not the correct choices.

Answer:

Gauze contaminated with blood