I stumbled upon DeafDoc's people at a DeafExpo in Chicago a few years back. I thought it was a bunch of hearing people awkwardly signing SICK, HOSPITAL, and VOMIT. Boy, was I wrong. What they developed was a pretty extensive medical resource for Deaf people, interpreters and hearing health care professionals.
Here's a sampling from www.deafdoc.org from their page titled, "Health Care Providers: How to Evaluate Interpreters"
This site touches upon various areas in medical interpreting including, turn taking, jargon, and payment. DeafDoc.org paired with our standard practice papers could be a winning pair if you find yourself at a loss for words in an interpreting situation.