All of the following are potential airway obstructions, EXCEPT:

_____ ______ ensure that secondary triage of patients is performed.

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

You are transporting a 54-year-old man who was working in his yard spraying a pesticide called Parathion. Although he was using a particulate respirator, he suddenly started experiencing dizziness, severe abdominal cramps, and vomiting. What is MOST likely route of toxic exposure?

A) Absorption B) Injection C) Inhalation D) Ingestion