Final answer:
The recommendation that is NOT part of the recommendations for EMS providers when washing their hands after patient contact is to use a brush to scrub under and around their fingernails.
Step-by-step explanation:
The recommendation that is NOT part of the recommendations for EMS providers when washing their hands after patient contact is (C) Use a brush to scrub under and around your fingernails. The other recommendations, such as removing all jewelry from hands and arms, paying attention to the creases and crevices of hands while washing, and not vigorously rubbing hands together, are all part of the recommendations for proper handwashing.