Code for a biopsy of the cervix

The route of administration of a medication abbreviated "Po" means:

a. injected in the muscle. c. rectally. b. orally. d. under the tongue.

The best way to determine how much root planing is needed is to

A) time about 20 minutes per tooth. B) count about 50 strokes per surface. C) evaluate radiographically that the calculus has been eliminated. D) monitor tissue response.