First, there are three ways in which you can keep chickens: 1  Free range Advantages: It's fun and you get to see the chickens run all around. 2  Limited range You can make up a fence (see fence section below) which will contain them. 3  Completely housed (in a coop) Advantages: Safety.
The USPSTF considers the following methods to be acceptable screening tests for colorectal cancer: 1  High-sensitivity fecal occult blood tests (FOBT). Both polyps and colorectal cancers can bleed, and FOBT checks for tiny amounts of blood in feces (stool) that cannot be seen visually. 2  Stool DNA test (FIT-DNA).
From there, cancer cells break off from the main tumor and circulate in the blood until they lodge elsewhere in the body, spreading the cancer to a new location. But a new blood test, developed at SRI Biosciences, can detect these cells when they first appear in the bloodstream and detect metastasizing cancer early. The test, called Fiber-optic Array Scanning Technology, or FASTcell, offers a degree of sensitivity currently unseen in the cancer-detection marketplace.