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NBME 20 Answers

nbme20/Block 2/Question#5 (29.1 difficulty score)
A 32-year-old woman has had fecal ...
Damage to the anal sphincterπŸ”

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submitted by ergogenic22(300),
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A rcsteth iujnyr nuigdr hribhidltc lliw etlrsu ni gedaam to het xtneeral eehurtral nad nala iestrnschp nad gdamea to eht eudndlap never 4.S)-S2( Thsi nac eadl to eeasdrecd siaenonst ni eth lrniapee dna inlgtae aaer dan lafce ro ruarnyi eictinnneocn

thepacksurvives  I think that there can also be a direct tear to the anal sphincter muscles +5  
sympathetikey  A better answer choice would have been "damage to the nerves innervating the anal sphincter" but eh, ok. +20  
nerdstewiegriffin  I it is due to actual tear of external and or internal anal sphincter Source uptodate +2