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Doctor insights on: Fecal Fat Qualitative

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Is a negative result on two separate qualitative fecal fat tests (one month apart) enough to rule out steatorrhea?

Is a negative result on two separate qualitative fecal fat tests (one month apart) enough to rule out steatorrhea?

Too a large degree!: Most people diagnose themselves by seeing oil and fat in the toilet. The tests are fairly accurate, so I do not see it as a problem. It does not typically come and go, although severity might! ...Read more

Fecal Fat (Definition)

Fecal fat is the passage of fat in the stool. Fat absorption is a complicated process so there are many potential causes. It can occur from diseases of the ileum such as crohn's disease or resection. It can also occur from an ...Read more


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Are normal cbc, billuprin, amylase and lipase levels, CT scan and qualitative fecal fat test a good indication against pancreatic cancer?

Are normal cbc, billuprin, amylase and lipase levels, CT scan and qualitative fecal fat test a good indication  against pancreatic cancer?

Yes: Pancreatic cancer is most uncommon at your age to begin with (it is not a common cancer in general). Normal blood tests and ct scan should reassure you that pancreatic cancer is not there. ...Read more

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What is the definition or description of: fecal fat?

What is the definition or description of: fecal fat?

Steatorrhea: Fecal fat is the passage of fat in the stool. Fat absorption is a complicated process so there are many potential causes. It can occur from diseases of the ileum such as crohn's disease or resection. It can also occur from an obstruction to bile flow. ...Read more

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For days I've noticed my stool has been coming out in bits that float and are unusually smelly. Did a fecal fat test but it came back normal?

For days I've noticed my stool has been coming out in bits that float and are unusually smelly. Did a fecal fat test but it came back normal?

Gas: Despite the stuff in books, floaters are almost always that way because of gas bubble content. This in turn has more to do with the chaos of gut flora, talking, gum chewing, and many other imponderables. If you trouble yourself over this stuff, you will just start making yourself feel sick. Go out and exercise hard and regular and ignore your stool unless it is obviously very abnormal ...Read more

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In a 16 mo old boy is 11% fecal fat considered normal? What about a stool pH of 8.5?

In a 16 mo old boy is 11% fecal fat considered normal? What about a stool pH of 8.5?

Stool is alkaline: The best way to evaluate stool fat is by collecting 24 hours stool. The normal is less than 7 grams. The stool is usually alkaline so ph of 8.5 is not worrisome. ...Read more

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I'm currently doing a 72 hr stool collection to test for fecal fat. Why is my stool steaming in the container?

I'm currently doing a 72 hr stool collection to test for fecal fat. Why is my stool steaming in the container?

Room: Temperature cooler than inner body temperature and its contents. Notice when there is fog coming out of a lake when is chilly in the morning? ...Read more

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What is a high aliphatic carboxylate test result in fecal fat test indicative of? Reference value <25, mine 39.

What is a high aliphatic carboxylate test result in fecal fat test indicative of? Reference value <25, mine 39.

Not much, but...: ...here's a link for your consideration: https://en.wikipedia.org/wiki/Carboxylic_acid. Better yet, let's please start our discussion with what symptoms or signs you may be experiencing that prompted the testing in question. In other words, an isolated test result out of context has little value but we are happy to help if we understand your primary concerns. ...Read more

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Can my regular doctor do the fecal fat test in his clinic?

Can my regular doctor do the fecal fat test in his clinic?

Maybe...: Fecal fat testing can be performed qualitatively (to see if fat droplets are present) or quantitatively (to measure how much fat is lost in stool). The former is a simple slide test using a sudan stain on a random stool sample, whereas the latter needs a timed collection of stool for measurement. Both studies are somewhat specific, & outside the usual in-office tests primary care docs might run. ...Read more

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Would floating stool caused by fat sink after a few minutes? Worried its fat not gas. Had stool tests including fecal fat test but not 72hr one normal

Would floating stool caused by fat sink after a few minutes? Worried its fat not gas. Had stool tests including fecal fat test but not 72hr one normal

Floater or Sinker: The sinkability of stool depends on the amount of air/gas, not the amount of fat, although vary fatty stools will tend to float. Are you having any symptoms? What was the reason you had test to begin with? Of course, celiac disease needs to be ruled out, but dietary changes which affect the population of gas forming bacteria in the gut can also be in play. Your md will sort it out. ...Read more