Ahead of your Behind pt 6 (tumor growth rate and FIT vs FOBT)- FORD BREWER


FORD BREWER MD MPH PrevMedHeartRisk.com
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The rate of tumor growth or the evolution of cancer is fundamental to the CRC detection process. In general, it takes years to develop an adenomatous polyp. And then from a polyp to an adenocarcinoma. That is important because it allows us time to continue evaluating again and again. If you use detection methods at home, it takes years and multiple samples to collect these samples reliably. That's because these polyps are friable (that is, the parts break and bleed). But they do not bleed with every touch of stool. Then, again, multiple samples are usually required, even if you are using fDNA.

What is the difference between FIT and FOBT (fecal immunochemical test versus fecal occult blood test)? FOBT is looking at the molecule of heme. It is a chemical test. There are many cross reactions that cause false positives. These range from red meat to even some plant components. The FIT test is an immunochemical test that is an antibody test for human globin, the seat of the protein in the heme molecule. This makes a much better test and deals with false positives. Even bleeding from the upper gi does not cause a false positive. That's because the blood in the upper gi is digested by the stomach and small intestine.

About Dr. Brewer: Dr. Brewer started as an Emergency Physician. After seeing too many patients who died from early heart attacks, he went to Johns Hopkins to learn Preventive Medicine. He went on to execute the postgraduate training program (residency) in Preventive Medicine at Hopkins. From there, he made a career in practice and administration of preventive medicine and primary care clinics. His last role in this area was that of Medical Director of Premise, which has more than 500 primary care / prevention clinics. He was also the medical director of MDLIVE, the second largest telemedicine company. More recently, he founded PrevMed, a clinic for the prevention of heart attacks, strokes and diabetes.
At PrevMed, we focus on heart attack, stroke, disability, cancer and Alzheimer's prevention. We found a large amount of type 2 diabetes not diagnosed. The treatment of unrecognized risk factors such as diabetes allows risk reduction. We provide genetic tests, images, laboratories and telemedicine options of the latest generation. We serve patients who have already experienced an event and those who have not developed a diagnosis or event. Our team of senior doctors includes internationally recognized leaders in the research and treatment of cardiovascular diseases, preventive medicine and well-being. We also provide preventive medicine through telemedicine technology in more than 30 states. Contact Dr. Brewer at info@prevmedheartrisk.com or visit

Video credits to Ford Brewer YouTube channel





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    Ahead of your Behind pt 6 (tumor growth rate and FIT vs FOBT)- FORD BREWER

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