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Doctor insights on: Stool Blood Test Card Defective

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Feces (Definition)

Feces is the product of ...Read more


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Will mucus in stool cause a false positive for blood in a FOBT stool test?

Will mucus in stool cause a false positive for blood in a FOBT stool test?

No: But depending on the test method there are other causes of false positive. Did you do a guiac test of FIT test. FIT test has fewer false positives, but it only detects colonic bleeds. ...Read more

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Why is fecal occult blood test important?

Why is fecal occult blood test important?

Cancer: Blood in stool represents bleeding somewhere in the gastrointestinal tract. It needs be investigated by a GI specialist, especially to exclude colon cancer. ...Read more

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Fecal occult blood test positive 3 times out of 3, normal colonocospy. Chronic diarrhea. What now?

Fecal occult blood test positive 3 times out of 3, normal colonocospy. Chronic diarrhea. What now?

Blood in stool: Blood in the stool is not normal and needs to needs to be explained. A normal colonoscopy does not rule out bleeding from the upper gastrointestinal tract. An upper endoscopy and /or upper GI series ( xray procedure) would be needed to look for bleeding higher than the reach of a colonoscopy. ...Read more

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If bag for babies urine sample was contaminated can high level of white blood cell test be false?Also second bag for culture make test false neg?

If bag for babies urine sample was contaminated can high level of white blood cell test be false?Also second bag for culture make test false neg?

No bags!!: If there is a significant concern for a urine infection in a baby, a bag specimen should never be used. It's akin to pooping on an area before a culture is collected instead of a nice sterile clean sight. The baby should be catheterized with a tiny feeding tube or small cath tube and a truly clean specimen obtained. So many false positives from dirty specimens and then unclear results. ...Read more

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Abdominal pain, frequent mucus loose stools, All negative H.pylori antigen, blood stool sample, CBC, ESR, CRP, Ferrin, celiac screening.? Is IBS ?

Abdominal pain, frequent mucus loose stools, All negative H.pylori antigen, blood stool sample, CBC, ESR, CRP, Ferrin, celiac screening.? Is IBS ?

That is: a likely conclusion but you should consult with the doctor ordering all these tests, and who also examined you. This is where you should seek your diagnosis ...Read more

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Occult blood in urine means?

Occult blood in urine means?

Heamturia: It could be a UTI even with no symptoms. It could be a kidney stone, vascular malformation,or a tumor. There could be an issue with the bladder or kidney. You should see your doctor and have the urine tested and have the condition checked out. ...Read more

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Is Haptoglobin (mg/dl) test a blood chemistry test or hematological test?

Is Haptoglobin (mg/dl) test a blood chemistry test or hematological test?

Haptpglobin: Is a transport protein for the breakdown of hemoglobin. If is used to assess for RBC destruction. When the haptoglobin Is low there is an association with increased hemolysis ...Read more

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If feces for a fecal occult blood test touch toilet can it give false negative when testing ?

If feces for a fecal occult blood test touch toilet can it give false negative when testing ?

No: Lukas, you're a grown man now and you recognize that you have health concerns that are unrealistic. In a way it's good -- you'll be more vigilant -- but if these fears are preventing you from finding the peace you need to work, play and love, then some structured self-exploration might set you free. Be brave, and best wishes. ...Read more

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Had urine test, some results urine occult blood negative trace Urine protein screen negative, trace mg\dl negative. is this normal reading with trace ?

Had urine test, some results urine occult blood negative trace Urine protein screen negative, trace mg\dl negative. is this normal reading with trace ?

Normal: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is in the best position to do that. Having said that, the results you provided are normal. ...Read more

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Thick blood , high inflammation levels abnormal liver function in all 3 blood tests, test back pos for blood clot on lung after dye test, back neg?

Thick blood , high inflammation levels  abnormal liver function in all 3 blood tests, test  back pos for blood clot on lung after dye test, back neg?

This is serious: I trust the dye test was a pulmonary angiogram that demonstrated a pulmonary thromboembolus, and it has also been determined that you have hypercoagulable blood. This is a major problem that will require work with your primary care physician and probably long-term medical management -- more than healthtap can do. Hope you do not smoke. The "inflammation" & liver labs need to be addressed in time. ...Read more

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Will a CBC blood test show internal bleeding or blood clots?

Will a CBC blood test show internal bleeding or blood clots?

No: a low hematocrit or hemoglobin on a cbc requires investigation, which can include internal bleeding as a cause. Multiple other causes as well: cancer, congenital, poor marrow etc. Other tests can discern clotting disorders ...Read more

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Do all blood banks notify donors if their blood tests positive for a disease?

Do all blood banks notify donors if their blood tests positive for a disease?

They should.: Donors are usually notified if the blood they gave is positive for a disease, like hepatitis b surface antigen, antibody to hepatitis c, antibody to hiv, usually subtypes 1 and 2, and serologic test for syphilis as recommended by the world health organization. Blood is also tested for diseases, like stds. Donated blood that is positive is discarded unless it is autologous as that is given back. ...Read more

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Blood test shows élévated bilirubin , urine test négative for bilirubin. Any explanation??

Blood test shows élévated bilirubin , urine test négative for bilirubin. Any explanation??

Unconjugated: Bilirubin exists in the blood in both the conjugated and Unconjugated forms. Only the conjugated can enter the urine. If you feel well, and this is new, you very likely have Gilbert's non-disease. Best wishes. ...Read more

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What 1+ occult blood negative in urine means?

What 1+ occult blood negative in urine means?

UA: It means you have +1 blood in your urine and the Normal value should be "Negative" so have the hematuria evaluated and worked up by the Doc. Best wishes. ...Read more

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blood test IGG 17.95 positive and IGM 8.50 negative. stool test was negative. do I infect with h.pylori?

 blood test IGG 17.95 positive and IGM 8.50 negative. stool test was negative. do I infect with h.pylori?

Past infection: These results suggest past infection with H. pylori. The blood test can remain positive for years after past infection even if you were treated. The stool test and urea breath test can better detect current infection. The gold standard for testing is a biopsy during endoscopy. https://www.nlm.nih.gov/medlineplus/ency/article/007501.htm ...Read more

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.How reliable is stool occult blood?

.How reliable is stool occult blood?

Not at ALL: It is not reliable at all. If it is positive, that tells us something needs to be checked. If it is negative, doesn't mean anything. It has a very high false negative rate - meaning, even if something is there, it doesn't detect it. ...Read more

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Faecal occult blood test positive danger?

Faecal occult blood test positive danger?

Maybe: The fecal occult blood test can be quite sensitive and may show blood in the stool from minor gastritis or esophagitis that is not significant. But, it could also be due to a large polyp or tumor so colonoscopy is always indicated when the fecal occult blood test is positive. Your primary doctor should be arranging this in the near future. ...Read more