The Nurse Is Assisting the Physician During the Insertion of a Central

The nurse is assisting the physician during the insertion of a central line into the subclavian vein.How should the nurse cleanse the area?

A) Alcohol usually is used first, followed by chlorhexidine
B) Chlorhexidine usually precedes alcohol
C) The physician scrubs an area using back and forth strokes
D) The antimicrobial solution must be dabbed dry with a sterile towel