At LabCorp, Insulin is drawn in a Red-top tube or gel-barrier tube, order code 004333.
LabCorp collection requirements
Insulin tube and order code at LabCorp
LabCorp verified by: Mandi Boss B Franklin, Jul 16, 2026
Compare this test
Need the full lookup, not just a comparison?
No login · Zero PHI · Clinician-verified · Quest + LabCorp + BioReference.