Which managed care organization contracts with a group of preferred providers to offer services to the managed care organization's members?

On an ECG, the ________ axis (line) represents time; a slower heart rate will have more space between the PQRST complexes

a. horizontal b. vertical c. diagonal d. crossing

Which one is NOT a preexamination error?

a. keeping the tourniquet on longer than 1 minute b. the technologist running the wrong test on a sample c. the ammonia test not being placed on ice after collection d. filling the Protime tube half full