Definition This test measures the types of protein in the fluid (serum) part of a blood sample. See also: Immunoelectrophoresis - serum Immunofixation - serum Serum globulin electrophoresis Alternative Names Lipoprotein electrophoresis How the test is performed A blood sample is needed. For information on giving a blood sample from a vein, see venipuncture . Electrophoresis is a laboratory technique. The blood serum (the liquid part of the blood without the cells) is placed on specially treated paper and exposed to an electric current. The proteins in the serum move on the paper to form bands that show the proportion of each protein fraction. A fraction may contain several different types of proteins. Individual proteins, except albumin , are not usually measured. However, protein fractions or groups ARE measured. The levels of protein fractions can be estimated by measuring the total serum protein and then multiplying that by the relative percentage of each protein fraction. Lipoprotein electropho...
What Does PSA Mean? PSA is a blood test that is commonly used to help predict the presence of prostate cancer . It stands for Prostate Specific Antigen (PSA) and refers to a protein first identified in 1979 that is made only by the prostate gland. It is currently used as a tumor marker and can also help monitor disease progression or lack of recurrent disease in patients who have previously undergone treatment for prostate cancer . A tremendous amount of confusion exists amongst patients and the popular press regarding PSA. Part of this lack of understanding has occurred because many think that an elevation in the PSA level means that one definitely has prostate cancer. In actuality, this is not true and this article should help clarify some of the confusion surrounding PSA testing. Most important is the “S” in PSA, which refers to the protein being specific to the prostate gland and not specific to cancer. Many conditions, both benign ...
Protein S is a substance that prevents blood clotting. A blood test can be done to see how much of this protein you have in your blood.
How the test is performed
Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood.
Next, the health care provider gently inserts a needle into the vein. The blood collects into an airtight vial or tube attached to the needle. The elastic band is removed from your arm.
Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding.
In infants or young children, a sharp tool called a lancet may be used to puncture the skin and make it bleed. The blood collects into a small glass tube called a pipette, or onto a slide or test strip. A ban...
You should knowAnswers to your question are meant to provide general health information but should not replace medical advice you receive from a doctor. No answers should be viewed as a diagnosis or recommended treatment for a condition. Content posted by community members does not necessarily reflect the views of Remedy Health Media, which also reserves the right to remove material deemed inappropriate.