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Insulin-Like Growth Factor 2 (IGF-2) Blood Test, LC/MS

The insulin-like growth factor 2 (IFG-2) test may be used as an adjunct to IGF-1 in the diagnosis of growth disorders.


Test Code: 141770

CPT Code: 83519

Also Known As: IGF II; Insulin Like Growth Factor 2; Somatomedin A; IGF-2

Methodology:

Radioimmunoassay (RIA) after acid:alcohol extraction

Preparation:

10-12 hours fasting required.

Test Results:

10-14 days. May take longer based on weather, holiday or lab delays.


Test Code: 92790

CPT Code: 82542

Also Known As: IGF II; Insulin Like Growth Factor 2; Somatomedin A; IGF-2

Methodology:

Chromatography/Mass Spectrometry

Preparation:

10-12 hours fasting required.

Test Results:

5-11 days. May take longer based on weather, holiday or lab delays.

Description

Insulin-like growth factor 2 (IGF-2), also called somatomedin A, is a hormone produced by the human body. It is one of the three protein hormones that are manufactured by the liver. IGF-2 encourages cell division in a variety of tissues, prepares the uterus for pregnancy, and causes embryonic growth after conception has taken place. The basic function of IGF-2 is to provide a vital role in growth and development processes in a developing fetus. It exerts its function primarily by binding to the IGF-1 receptor. Failure of this imprinting mechanism can cause over-expression of the protein and may be involved in several diseases.

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