Things that I've heard old men say at my one job site:
"You can't have a kidney stone if there's no blood in the urine."
"Reflexes are like a poor man's MRI. If they're normal, there's nothing wrong."
"Clindamycin kills Merserrr (MRSA)?"
"If the HCG is below 2000 they're not pregnant."
HOLY MOLY.
What is up with the reflexes comment? Where does that even come from? You can have a major stroke and reflexes are normal. LOL
I haven't worked a general EM shift in years (although the neuro stuff, I see daily). For fun, I'm going to fact check these. Then you grade me. Ready, set, go...
As to the kidney stone and HCG comments, yeah...wrong. Not ruled out if neg heme or hcg <2000. Work it up. I could go a hundred years without working in an ED an not forget that. Patently false.
As far as reflexes go, I'll rate that one "mostly false." Of course, it depends on which reflexes you're talking about, but commonly tested extremity reflexes (patellar, achilles, triceps, biceps) have nothing to do with acute cva, as they go through the spinal cord and bypass the brain. So, yeah, that's a weird comment. Unless they're referring to acute spinal cord catastrophes(?) there's more utility. In general, there are very few exam findings that are so sensitive that they have a negative predictive value good enough to supplant modern imaging and testing. So yeah, don't skip the CT and neuro workup "cuz reflexes." Lol
As far as the clindamycin thing goes, I'll give that a "partly false." What kills MRSA (or any other bacteria) is always a moving target. It all depends on the susceptibility in your area based on cultures. But yes, clindamycin (some) can cause inducible resistance in MRSA, and you need a
d-test to confirm if it's a therapeutic option. But that attending is partly correct in that
sometimes clindamycin kills MRSA. That number may not be anywhere near 100%. But when people make blanket statements such as "____" antibiotic kills "____" organism, you're really only talking in percent likelihoods. A given antibiotic may kill a certain percentage of isolates of a certain strain of bacteria. When the number is 99% or closer to the 0% end of the spectrum, it's easy to talk and feel certain. But look at your local micro labs nomograms. You may see numbers like 75%, 85% or 90% for antibiotics that's you've been told were certain to kill a given organism. In other words, you may even be wrong 10, 15 or 25% of the time, even when you're "right" on a given bacterial strain. And your dinosaur attending might be right a certain percentage of the time (if d-test, not resistant, culture, etc) like a broken clock is also right, twice per day. Lol
We like to make things bullet-point simple in EM. Often they're not. But they're always Lol.