Are You Really That Worried?

When I was an intern, a nurse came into the pharmacy satellite and asked which pill in a cup of maybe 12 happened to be the patient's lithium. I dumped them out on the counter, pointed to the lithium and said "it's that one." "Thanks," she said, "now I have to go throw these all away and get new pills." Little did that nurse know, more than one of those tablets may or may not have been on the floor of the pharmacy before being dispensed to her for administration...