- (healthcare) To thoroughly wash one's hands and forearms in preparation for performing a surgery.
2007 September 11, Parks, Mary Lou, "O Lord Have Mercy!": Finding Our Way As Student Nurses in the 1950s, Dog Ear Publishing, ISBN 9781598584110, OL 12496965M, page 83:
- There were no booties to wear over their shoes, and they wore scrub caps on their heads only if they were going to scrub in for a procedure. When you scrubbed in for surgery you couldn't touch anything after you finished scrubbing.
2009 August 26, Sellers, Jr., Thomas F., What's Up, Doc?: A Lifetime in Medicine: 1946-1990, Bloomington: iUniverse, ISBN 9781440163326, OL 25417401M, page 43:
- When we were assigned to a surgical patient, we were expected to “scrub in” on his or her patients’ surgery when it occurred. […] To “scrub in” on a case meant one was to be part of the operating team, which might consist of one or two advanced residents and a second year resident or intern or two.