| Test Name: | Insulin - Like Growth Factor 1 (IGF - 1) |
| Epic Order Code: | LAB526 | | |
| CPT Code: | 84305 | | |
| Specimen(s) Type: | Serum, 0.5 mL | | |
| Acceptable Container(s): |   Tops are gold and red. |
| Testing Schedule: | Monday-Saturday |
| Turn Around Time: | STAT: NA | | |
| | Routine: 2-4 days |
| Collection Information: | No special patient preparation is required. Obtain by standard collection procedures. |
| Transport Information: | Deliver to lab immediately. All specimens must be signed into the laboratory. |
| Reference Clients: | If unable to deliver to the lab within 1 hour, centrifuge the specimen and remove serum from the red cells. Store and transport at -20° C within 10 days. |
| Causes for Rejection: | Improperly labeled, incorrect container, contaminated, insufficient volume, incorrect/delay in transport, hemolysis. |
| Reference Range: | See patient report. |
| Additional Information: | Useful for diagnosing growth disorders, adult growth hormone deficiency, monitoring of recombinant human growth hormone treatment and diagnosis and follow-up of acromegaly and gigantism. |