Human Chorionic Gonadotropin (hCG), β-Subunit, Qualitative is drawn in a Serum separator tube (SST) at Quest, a Red-top tube, gel-barrier tube or green-top (lithium heparin) tube. Do not use oxalate, EDTA or citrate plasma. at LabCorp, and a SST Tube at BioReference.
Lab comparison
Human Chorionic Gonadotropin (hCG), β-Subunit, Qualitative: 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 | 8435 | 004556 | T824-2 |
| Primary tube | Serum separator tube (SST) | Red-top tube, gel-barrier tube or green-top (lithium heparin) tube. Do not use oxalate, EDTA or citrate plasma. | SST Tube |
| Specimen type | 1 mL serum | Serum (preferred) or plasma | 2 mL SST Tube |
| Patient prep | None Specified | None Specified | None Specified |
| Minimum volume | Minimum volume 0.3 mL | Minimum Volume 0.7 mL (Note: This volume does not allow for repeat testing.) | Qty 1 |
Frequently asked questions
What is the Quest Diagnostics order code for Human Chorionic Gonadotropin (hCG), β-Subunit, Qualitative?
The Quest Diagnostics order code for Human Chorionic Gonadotropin (hCG), β-Subunit, Qualitative is 8435.
What tube color does LabCorp use for Human Chorionic Gonadotropin (hCG), β-Subunit, Qualitative?
LabCorp uses a Red-top tube, gel-barrier tube or green-top (lithium heparin) tube. Do not use oxalate, EDTA or citrate plasma. for Human Chorionic Gonadotropin (hCG), β-Subunit, Qualitative.
Does Human Chorionic Gonadotropin (hCG), β-Subunit, Qualitative require fasting?
Human Chorionic Gonadotropin (hCG), β-Subunit, Qualitative 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, Aug 23, 2026
LabCorp verified by: Mandi Boss B Franklin, Aug 23, 2026
BioReference verified by: Mandi Boss B Franklin, Aug 23, 2026
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