Compared to normal levels, a shift in the HbO2 curve to the right has which of the following ef-fects?
1. The affinity of Hb for O2 decreases.
2. The Hb saturation for a given PO2 falls.
3. The Hb saturation for a given PO2 rises.
a. 1 only
b. 1 and 2 only
c. 2 and 3 only
d. 1, 2, and 3
ANS: B
As blood pH drops and the curve shifts to the right, the Hb saturation for a given PO2 falls de-creased Hb affinity for O2.
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With respect to global surgical package guidelines, surgical supplies are:
always included in the global fee. always billed separately from the surgical code. billed separately only if they are over and above those usually included with procedures. never coded.