Monday, May 02, 2011

Classic Anticholinergic Side Effects

  • Blind as a bat (blurred vision, mydriasis)
  • Mad as a hatter (hallucinations, psychosis, delirium, memory loss, coma)
  • Red as a beet (flushing)
  • Hot as heat (fever, hyperthermia)
  • Dry as a bone (dry mouth, dry eyes)
  • The bowel and bladder lose their tone (constipation, urinary retention, ilius) 
  • And the heart runs alone (tachycardia, hypertension)
To remember this pneumonic, the first two rhyme with "bat", the next two rhyme with "beet", and the last three rhyme with "bone." Some of this pneumonic doesn't really make any sense since "bowel and bladder lose their tone" suggests diarrhea and urinary incontinence when, in fact, the opposite is the case.

2 comments:

Anonymous said...

How about "bowel and bladder you no longer own" since your body no longer respects the needed transits, it become out of your control.

Ovid

Anonymous said...

Actually is does makes sense, the bowel moves matter through by constriction of muscles, when muscles lose their tone they are not functioning. similarly, when the bowel and bladder lose their muscle tone you would expect a lack of urination and defecation.

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