Wandering atrial pacemaker has at least three different shapes of

When outpatient preadmission services are provided by a hospital on the day of or during the three days prior to a patient's inpatient admission and the inpatient principal diagnosis code exactly matches that for preadmission services, the IPPS __________ rule applies

a. 3-day payment window b. intensity of resources c. severity of illness d. transfer

The organ where gas exchange takes place is the:

A. kidney. B. bladder. C. intestines. D. lungs.