The tissue that lines internal and external body surfaces and protects the body is called:

Our blood transports oxygen from the lungs to the cells and returns with what byproduct of metabolism?

A) Lactic acid B) Carbonic acid C) Carbon dioxide D) Carbon monoxide

Medicare pays outpatient hospitals using the Ambulatory Payment Classification and groups the CPT codes according to:

A) date of service. B) rate of payment. C) similar procedures. D) type of disease.