Insulin-like Growth Factor 1 (IGF-1) is drawn in a Collect blood in a red-top tube (no gel) or serum separator tube (SST). at Quest, a Red-top tube or gel-barrier tube at LabCorp, and a SST Tube at BioReference.
Lab comparison
Insulin-like Growth Factor 1 (IGF-1): Quest vs LabCorp vs BioReference, tube, code & requirements
. This page shows collection requirements for all three major reference labs in one view, so you don’t have to cross-check three portals.
Always verify against your lab’s current collection manual before drawing.
Every value on this page is verified by a nurse practitioner in active clinical practice, not scraped from an automated source.
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| Requirement | Quest Diagnostics | LabCorp | BioReference |
|---|---|---|---|
| Test code | 16293 | 010363 | 1072-8 |
| Primary tube | Collect blood in a red-top tube (no gel) or serum separator tube (SST). | Red-top tube or gel-barrier tube | SST Tube |
| Specimen type | 0.5 mL serum | Serum | 1 mL SST Tube |
| Patient prep | None Specified | None Specified | None Specified |
| Minimum volume | Minimum volume 0.3 mL | Minimum Volume 0.2 mL (Note: This volume does not allow for repeat testing.) | Qty 1 |
Frequently asked questions
What is the Quest Diagnostics order code for Insulin-like Growth Factor 1 (IGF-1)?
The Quest Diagnostics order code for Insulin-like Growth Factor 1 (IGF-1) is 16293.
What tube color does LabCorp use for Insulin-like Growth Factor 1 (IGF-1)?
LabCorp uses a Red-top tube or gel-barrier tube for Insulin-like Growth Factor 1 (IGF-1).
Does Insulin-like Growth Factor 1 (IGF-1) require fasting?
Insulin-like Growth Factor 1 (IGF-1) patient prep: None Specified. Always confirm with the ordering lab before the draw.
Data provenance
Source: Quest Diagnostics specimen collection manual, LabCorp directory of services, and BioReference laboratory collection guide.
Verified by: a licensed nurse practitioner in active clinical practice. Values are reviewed against each lab’s published collection requirements. Always confirm against your lab’s current manual before drawing.
Quest verified by: Mandi Boss B Franklin, Jul 26, 2026
LabCorp verified by: Mandi Boss B Franklin, Jul 26, 2026
BioReference verified by: Mandi Boss B Franklin, Jul 26, 2026
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