to the right coronary artery. Choose the best description for this procedure.
a. Three aortocoronary grafts
b. Two aortocoronary grafts and one mammary-coronary graft
c. Two aortocoronary grafts and two saphenous bypass grafts
d. Three aortocoronary grafts and one mammary-coronary graft:
Correct An- swer: B
It is rare for only one coronary artery to be bypassed, and it is also fairly common to perform both
an internal mammary-coronary artery bypass and an aortocoronary bypass at the same operative
episode (Schraffenberger and Palkie 2018, 324-326).
5. According to CPT, an endoscopy that is undertaken to the level of the
midtransverse colon would be coded as a:
a. Proctosigmoidoscopy
b. Sigmoidoscopy
c. Colonoscopy
d. Proctoscopy: Correct Answer: C
A colonoscopy is an examination of the entire colon, from the rectum to the cecum that may
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