Fecal Analysis Flashcards
is it okay find yeast in the stool
yes as long as it is not predominant
normal things to find in stool
cells, not WBC
electrolytes
undigested food and fat- amount can find certain disease states
normal color of stool
brown- due to sterco bilinogen
white or chalky stool meaning
blockage
if true blockage
-urobilinogen levels will be decreased
-increase in ALP
-conjugated bili= increased
other possible reasons for chalky stool
barium edema
laxatives
meaning of black stool
GI bled- upper
iron pills
red stool meaning
lower GI bled
after eating beats
increases in undigested blood can raise
BUN, but not creatinine
WBC found in stool mean
shigella- bacilli dysentery
could also be E.coli 0157 or C. diff
test for looking for undigested fat
fecal fat testing
fecal fat test
looks for steatorrhea-excess excretion of fat
> 7 indication
means malabsorption
macro observation of fecal fat
slimy, mucous= bad
micro tests done for fecal fat
neutral fat stain
split fat stain
neutral fat stain
-looks for triglycerides
-add 95% ethyl alcohol
-sudan 3 oil stain
> 60 large droplets =steatorrhea
split fat stain
looks for total fat content (fat acids and fatty acid salts)
add acetic acid and sudan 3
gently heat until bubbling
> 100 large droplets = steatorrhea