How many years are many states required to keep medical records?

Most apnea monitors operate using the principle of:

I. body plethysmography II. impedance plethysmography III. inductive plethysmography IV. capnometry A) I and II B) II and III C) I and III D) III and IV

Medicare pays the entire bill for covered services as long as the services are medically reasonable and necessary in what type of care setting?

A. Home health care B. SNF C. Hospital inpatient D. None of the above