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Kaplan Qbank USMLE



Author5 Posts
  #1

7 month infant, poor weigh gain despite large intake, two pneumonia, frequent bulky stools, lungs have increased markings and hyperinflation, trypsin absent in stool, fat content is increased

answer: defective ion transport at epithelial surfaces

what kind of disease does he have?

  #2

Cystic Fibrosis.


  #3

bang on target pr20


___________________
FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."

  #4

it is cystic fibrosis, it didn't list the typical symptoms or signs, or mentioned the sweat test, etc, how did you get to that coclusion?

and how many people know that trypsin is absent in the stool?

  #5

Poor weight gain,frequent bulky stools,increased fat content in stools(indicates malabsorbtion due to pancraetic insufficiency),recurrent pulmonary infections---these are classical features of cystic fibrosis.

Absence of trypsin in the stool indicates pancreatic insufficiency(due to obstruction of pancreatic ducts by thick viscous fluid).












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