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Test Compendium


Test Code

  • 4191

Test Synonym

  • Banzel

Minimum Volume

  • 0.5 mL

Specimen Requirements

  • Serum Or Plasma


  • Plain Red Top Tube, Transfer Tube- Serum, Green Top Tube, Transfer Tube- Plasma


  • Refrigerated

Turn Around Time

  • 7 days

CPT Codes

  • 82542
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • 2 mL serum from a Red top or plasma from a Green top (heparin) in a plastic transport tube, indicate if serum or plasma

Additional Information

  • Draw a Green-top (heparin) tube or a Red-top tube and separate the serum/plasma from cells within 2 hours of venipuncture. Send the serum/plasma in a plastic transport tube and indicate if serum or plasma. SST (gel-barrier) tubes will be rejected

Specimen Stability

  • Stability AMBIENT: up to 3 days REF: to 2 weeks FRZ: up t0 6 months