What is the minimum record retention period for adult health records?

You arrive at work and note that the portable oxygen tanks in the ambulance are 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 tanks. D) realize that a yellow color indicates new tanks that hold more oxygen.

Match each item with a statement below.

A. A ratio measure of association which provides the strength and direction of the association between exposure and outcome in a population B. The ratio between the observed number of deaths due to a specific cause and the expected number of deaths due to the same cause C. A measure of association between exposure and outcome which provides strength and direction using two incidence densities