Gentlemen, are we not all on the same ship here. Richard, you make excellent point's, How do you know that an item is “clinically clean”, simple, you don't. You take care. If Louis is performing a simple functional PPM and NOT a service, Louis will usually wear some protection ,i.e. gloves, as most items only require simple functional/calibratory procedures NOT INVOLVING THE APPLIED PART.
However, You employed a SPO2 probe in your analysis, that is an applied part, surely that probe was ready for the next patient. Louis would say this for all items in clinical areas, they are simply going to be used on the next patient, therefore they should be clean, If not then we have a serious problem on our hands.