Which of the following are cell fragments that are attracted to injured tissues to initiate the blood clotting process?

You arrive at work and note that the portable oxygen tank in the ambulance is now yellow instead of green, as during the previous shift. As a knowledgeable EMT, you should:

A) Remove the tank and retrieve a green cylinder B) Recognize the addition of more effective synthetic oxygen C) Determine that your service has switched to the new lightweight oxygen tank D) Realize that a yellow color indicates a new-style tank that holds more oxygen

What is performed for a patient who does not have symptoms, abnormal findings, or any past history of the disease?

A. screening service B. surgical procedure C. rehabilitation D. referral service