The best use of CEA is as a tumor marker, especially for cancers of the gastrointestinal tract. When the CEA level is abnormally high before surgery or other treatment, it is expected to fall to normal following successful surgery to remove all of the cancer.he most frequent cancer which causes an increased CEA is cancer of the colon and rectum. Others include cancers of the pancreas, stomach, breast, lung, and medullary carcinoma of the thyroid and ovarian cancer.
Screen refresh rate is the number of times an image on any type of monitor or television is reconstructed per second. This is measured in hertz.. (Hz) For example, a TV witâ¦h a refresh rate 60Hz, reconstructs the image you're seeing 60 times every second. Basically, the higher the refresh rate on a tv, the representation of motion will be smoother, and the image will flicker less.
Essentially, a TV's refresh rate is how fast the display changes the picture. TVs with faster refresh rates refresh the screen's image more often per second. And in theory, a faster refresh rate means less motion blur and a smoother picture. But how fast does it really need to be? The standard TV refresh rate is 60Hz, which means that the screen displays 60 frames per second. (To be more specific, it's actually 30 frames that are doubled and laced together for fluid movement from image to image).