The frequency, f, is the number of cycles that any particle undergoes in one second. It is also the number of wavelengths that pass a fixed point in one second. In one second, a wave goes through f cycles. In each cycle it moves on by the wavelength (l).
View All. A fecal occult blood test (FOBT) is a non-invasive way to screen for blood in your stools, which can be a symptom of colon cancer. If a FOBT finds blood in your stools, you will be referred for further colon cancer screening, such as colonoscopy or flexible sigmoidoscopy. What is a Fecal Occult Blood Test For the fecal occult blood test (FOBT), you collect several stool samples and then ship these samples to a laboratory to be tested for the presence of blood. Your doctor will provide you with the kit to collect your stool samples or will tell you where you can purchase the kit for yourself.
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