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IGF-1, Adult
| Item | Value | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Approval req'd? | No | ||||||||||||||||||
| Available Stat? | No | ||||||||||||||||||
| Test code | AIGF1 | ||||||||||||||||||
| Test group | IGF1 | ||||||||||||||||||
| Performed by | Quest | ||||||||||||||||||
| Sendout? | Yes | ||||||||||||||||||
| Method | LC/MS | ||||||||||||||||||
| Container type | Red top or Gold top | ||||||||||||||||||
| Amount to Collect | 1 mL blood | ||||||||||||||||||
| Sample type | Serum | ||||||||||||||||||
| Preferred volume | 0.5 mL serum | ||||||||||||||||||
| Min. Volume | 0.3 mL serum | ||||||||||||||||||
| Processing notes | Freeze aliquot and send to China Basin for sendout | ||||||||||||||||||
| Units | ng/mL | ||||||||||||||||||
| Normal range | Age
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| Synonyms | IGF1; Somatomedin C | ||||||||||||||||||
| Stability | Room temperature 2 days, refrigerated 5 days, frozen 1 week, frozen at -70C 3 weeks | ||||||||||||||||||
| Turn around times | 3-5 days | ||||||||||||||||||
| Additional information | Insulin-like growth factor I (IGF-I, or somatomedin C), a protein involved in stimulating somatic growth, is regulated principally by growth hormone (GH) and nutritional intake. IGF-I is transported in serum by several proteins; this helps maintain relatively high IGF-I plasma levels and minimizes fluctuations in serum IGF-I concentrations. Measuring IGF-I is useful in several growth-related disorders. Dwarfism caused by deficiency of growth hormone (hypopituitarism) results in decreased serum levels of IGF-I, while acromegaly (growth hormone excess) results in elevated levels of IGF-I. IGF-I measurements are also helpful in assessing nutritional status; levels are reduced in under-nutrition and restored with a proper diet. |
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| CPT coding | 84305-90 | ||||||||||||||||||
| Last Updated | 5/22/2013 1:34:49 PM | ||||||||||||||||||
| Entry Number | 1508 |
If you have additional questions regarding this test, please call: 415-353-1667