Immunoglobulin electrophoresis - urine; Gamma globulin electrophoresis - urine; Urine immunoglobulin electrophoresis; IEP - urine
Urine immunoelectrophoresis is a test that measures immunoglobulins in a urine sample.
See also: Immunoelectrophoresis - serum
Collect a "clean-catch" (midstream) urine sample. To obtain a clean-catch sample, men or boys should wipe clean the head of the penis. Women or girls need to wash the area between the labia (lips of the vagina) with soapy water and rinse well.
As you start to urinate, allow a small amount to fall into the toilet bowl. This clears the urethra -- the tube that carries urine from the bladder and opens to the outside. Then, in a clean container, catch about 1 - 2 ounces of urine. Remove the container from the urine stream. Give the container to the health care provider or assistant.
In an infant, thoroughly wash the area around the opening of the urethra. Open a urine collection bag (a plastic bag with an adhesive paper on one end), and place it on your infant. For males, the entire penis can be placed in the bag and the adhesive attached to the skin. For females, the bag is placed over the labia. Place a diaper over the infant (bag and all).
Check your baby frequently, and remove the bag after the infant has urinated into it. For active infants, this procedure may take a couple of attempts. Lively infants can displace the bag, making it difficult to get the specimen. Drain the urine into a container for transport back to the health care provider.
The laboratory technician uses electrical charges to separate and identify various immunoglobulins in the urine.
Your health care provider may recommend that you collect the first morning urine, which is the most concentrated.
If you are taking the collection from an infant, you may need extra collection bags.
The test involves only normal urination, and there is no discomfort.
McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 21st ed. Philadelphia, Pa: Saunders Elsevier; 2006.
Hoffman R, Benz EJ, Shattil SS, et al, eds. Hematology: Basic Principles and Practice. 5th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2008.
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