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Lab Test Dictionary

Organic Bases (Research Testing)

Specimen Type

Serum or Plasma

Performing Lab

UCSD Biochemical Genetics

Epic ID

Other Reference Test

Lab Test Days


Collection Information

Specimen Required

2-4 mL Blood

Container Type

Light Green (Lithium Heparin PST)

Collection Instructions

Plasma collected in sodium heparin (green-top) tube is also acceptable. Serum collected in a red-top or serum separator tube (SST) is also acceptable but only as an alternative if needed.

Processing Information - Lab Use Only

Transport Temperature


Test Volume Required

2 mL Plasma

Minimum Test Volume

1 mL Plasma

Processing Instructions

Centrifuge, separate serum or plasma within 20 minutes, and promptly freeze. Complete UCSD Biochemical Genetics requisition and submit with specimen frozen.