Lab comparisonCPT 83540
Iron and Total Iron Binding Capacity: Quest vs LabCorp vs BioReference, tube, code & requirements
Comprehensive iron metabolism panel. 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.
| Requirement | Quest Diagnostics | LabCorp | BioReference |
|---|---|---|---|
| Test code | 7573 | 001321 | 0835400 |
| Primary tube | Red Top or Gold SST | Gold SST | Red Top |
| Specimen type | Serum | Serum | Serum |
| Patient prep | Fasting (8–12 hours preferred; morning draw) | Fasting (8–12 hours preferred; morning draw) | Fasting (8–12 hours preferred; morning draw) |
Frequently asked questions
What is the Quest Diagnostics order code for Iron and Total Iron Binding Capacity?
The Quest Diagnostics order code for Iron and Total Iron Binding Capacity is 7573.
What tube color does LabCorp use for Iron and Total Iron Binding Capacity?
LabCorp uses a Gold SST for Iron and Total Iron Binding Capacity.
Does Iron and Total Iron Binding Capacity require fasting?
Iron and Total Iron Binding Capacity patient prep: Fasting (8–12 hours preferred; morning draw). 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.
Need the full lookup, not just a comparison?
No login · Zero PHI · Clinician-verified · Quest + LabCorp + BioReference.