Individual tests

Creatinine is a waste product your muscles produce as part of regular, everyday activities. Normally, your kidneys filter creatinine from your blood and send it out of the body in your urine. If there is a kidney problem, creatinine can build up in the blood, and less will be released in urine.
Creatinine is a waste product your muscles produce as part of everyday activities. Normally, your kidneys filter creatinine from your blood and send it out of the body in your urine. If there is a kidney problem, creatinine can build up in the blood, and less will be released in urine.
Creatinine is a waste byproduct of normal muscle activity. The kidneys remove creatinine from the blood and it is then excreted through urine. A creatinine clearance test assesses how well the kidneys filter blood and is important for detecting and monitoring kidney problems.
The creatinine clearance test helps assess how well the kidneys are working. This test compares creatinine levels in urine and blood.
Your kidneys have tiny filters called glomeruli which remove waste and excess fluid from blood. A glomerular filtration rate (GFR) is a blood test that checks how well your kidneys work by estimating how much blood passes through these filters each minute.
The fecal occult blood test (FOBT) checks stool samples for hidden (occult) blood. Occult blood in the stool may indicate colon cancer or polyps in the colon or rectum — though not all cancers or polyps bleed. If blood is detected through a fecal occult blood test, additional tests such as a colonoscopy may help determine the source of the bleeding. The fecal occult blood test can only detect the presence or absence of blood — it can't determine what's causing the bleeding.
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