There is NO such thing as selective BSI. I had never heard of such until I read it here. Any fool that describes such is awaiting to get Hep B, C, and non A-B, C, HIV, and on and on..and then possible be a fomite and transfer something to another patient.
Sorry, patients do not come with placards around their neck describing their history and we do not wear infra-red glasses to see MRSA and E-Coli and all the ten million little germs and viruses.
Sorry, patients lie, they also do not wash their hands after using the restroom, they cough, sneeze, place their fingers into orifices and then .... shake your hand, then grab ahold onto your equipment, stretchers, straps, bench-seats, clipboards, all that you will probably touch during the course of the day.. Are you really sure, you cleaned every spot of that EMS truck?.. I can guarantee you did not Of course... now, you are going to touch that immunosuppressed patient with a a hand that just touched your equipment? How many EMT's know what diseases causes immunosuppression or procedures? Do your patient's tell you that they are immunodeficient? Mine don't & like I stated .. "they lie"... as well. Don' believe me, await tell the physician asks them questions and they are totally opposite of what they told you.
So, treat each patient that they have a potential problem. It is for their protection as well as ours!
R/r 911