TRANSFORMING GROWTH FACTOR BETA, PLASMA

Specimen Required
Draw blood in a green lithium heparin tube. Centrifuge and separate plasma from cells within 2 hours of collection. Send 1.0 mL plasma (0.3 mL minimum) frozen in a screw-capped plastic vial. CRITICAL FROZEN.

Rejection Criteria
Gross hemolysis, gross lipemia, heat-inactivated specimens

Methodology
Quantitative Multiplex Bead Assay

Stability
Room temperature: 30 minutes; Refrigerated: Unacceptable; Frozen: 1 year

Reference Range
463-5423 pg/mL

Performed
Tuesday

Turnaround Time3-11 days
Test CodeTGFBP
CPT-4 Code (s)
83520
LOINC Codes
49853-5

Warde
Medical
Laboratory