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Lab Test Dictionary


Specimen Type

Serum or Plasma

Performing Lab

Quest forward to Esoterix (TSO)

Epic ID

Other Reference Test

Standard TAT

11-15 Days

Collection Information

Specimen Required

1.5-3 mL of blood

Container Type

Red Top (No Additive)

Collection Instructions

Plasma collected in an EDTA lavender top tube is also acceptable.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room temp: 14 days; Refrigerated: 14 days; Frozen: 441 days

Test Volume Required

1.2 mL serum or plasma

Minimum Test Volume

0.6 mL serum or plasma

Processing Instructions

separate serum or plasma within 2 hours of collection. Requires TSO form.


Esoterix test code: 504674. Requires TSO form.

CPT Codes