Creatinine (Kidney Function)
Creatinine is a waste product formed by the breakdown of creatine important for converting food into energy. The creatinine is filtered out of the blood by the kidneys and then passed out of the body in urine. If the kidney cannot function normally, the amount of creatinine in the urine decreases while the amount of creatinine in the blood increases.
Hemoglobin A1c (Glycohemoglobin)
Hemoglobin is the substance in red blood cells that carries oxygen. Glycohemoglobin is a form of hemoglobin that has blood sugar (glucose) bound to it. Test results help monitor the long-term control of blood glucose levels in people with diabetes. Most doctors consider the glycohemoglobin A1c level most effective in monitoring the control of diabetes.
Glucose is a type of sugar found in many foods. Most of the carbohydrates that people eat are turned into glucose, which can be used for energy or stored. Insulin helps the body use and control the amount of glucose. People who do not produce enough insulin develop diabetes.
Cholesterol is a type of fat that the body uses to help build cells and produce hormones. Too much cholesterol may increase the risk of heart disease and stroke. Cholesterol may begin to build up along the inside of the artery walls, forming plaque. Plaque may obstruct the flow of blood t hr ough the artery, affecting heart, brain, or other vital organs.