In situations where EMS personnel must decontaminate patients before the arrival of a hazardous materials team, you will most often employ a(n) ______-step method

Which of the following is critical to ensure the receiver properly understands the sender's message?

A) Inflection B) Feedback C) Channel D) Diction

What is the purpose of a check valve?

A. To drain water and test valves B. To limit flow of water to one direction C. To drain water from piping when pressure is relieved D. To flow water for the purpose of testing the water-flow alarm