Blood tests hidden in the blood are a sample that shows the presence of small blood cells that may not be visible to the naked eye, so this sample is used to detect small bleeding in the digestive tract that may indicate ulcers, colitis, or even colon cancer. He knows he can bleed.
This problem is usually requested by your doctor to investigate whether it is colon cancer, especially in people with a family history, as well as to look for the cause of anemia or to help diagnose inflammatory bowel changes, such as Crohn’s and colitis. For example.
- To perform the under-blood test it is important for the person to follow certain recommendations from the doctor to obtain the blood sample.
- Which usually lasts 3 days.
- As certain factors may interfere with the result.
- So it is recommended:.
If the sample was taken under any of these conditions, it is ideal to inform both the laboratory and the doctor, to avoid misinterpretation of the results, however, in most cases, it may be necessary to repeat the test to confirm the result.
Hidden blood testing is considered a triage problem, identifying evidence of the presence or absence of inflammatory bowel diseases without the need for more expensive and invasive procedures.
Diagnosis of the disease should not be made based on the outcome, although it may have a high sensitivity, but it is recommended to perform a colonoscopy, which is considered the gold standard for the diagnosis of inflammatory bowel diseases, including colorectal cancer. .
Possible results of hidden blood tests in needs are
In case of a positive or negative result with some modifications, your doctor may ask to repeat the test to confirm the result or perform a successful colonoscopy with a person’s medical history.
False positive results are those in which blood is detected, but this does not represent the patient’s condition, this type of result can occur in people who do not prepare properly for what is referred to in the diet, have bleeding gums or nasals, use medications that cause irritation of the gastric lining or collect them a few days after the menstrual period.
In some cases where the result is negative, your doctor may order a colonoscopy, especially if the patient has a high risk of developing colon cancer, to make sure there are no changes, as in some very rare situations, there may be cancer without bleeding. . See other problems that can cause changes in dark hair and hair color.
The presence of blood in the urine usually indicates intestinal changes, although the main ones are:
Therefore, in order to identify the correct cause of blood in your blood, it is common for your doctor to hide a blood test from a colonoscopy or endoscopy, especially when bleeding is not caused by hemorrhoids. has blood on your needs.
These tests consist of the introduction of a thin tube with a small camera on the side, which allows to observe the inside of the intestine and stomach to identify possible lesions, facilitating the diagnosis. Understand how colonoscopy is performed.