Ordering Recommendation

Mnemonic

TGFB1 PLA

Methodology

Quantitative Enzyme-Linked Immunosorbent Assay

Performed

Mon

Reported

1-8 days

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation
Collect

Lavender ( K2 EDTA plasma).

Specimen Preparation

Conventional specimen preparation practices frequently do not fully remove platelets from plasma and contribute to elevated TFG-b measurements. Centrifuge anticoagulated whole blood within 2 hours of collection at 1500g for 10 minutes. Collect plasma and transfer to a fresh tube. Immediately centrifuge plasma at 3000g for 10 minutes. Collect plasma from upper 2/3 of tube without disturbing lower 1/3 of tube and transfer to fresh tube for storage or transport. Separate plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL plasma to an ARUP Standard Transport Tube. (Min 0.3 mL)

Storage/Transport Temperature

CRITICAL FROZEN. Freeze <-20 C immediately. Separate specimens must be submitted when multiple tests are ordered.

Unacceptable Conditions

Contaminated, severely hemolyzed, heat-inactivated or grossly lipemic specimens.

Remarks
Stability

After separation from cells: Ambient: 30 minutes; Refrigerated: Unacceptable; Frozen: 60 days

Reference Interval

1654-19951 pg/mL

Interpretive Data

Results are intended for research purposes or in attempts to understand the pathophysiology of unusual immune or inflammatory disorders.

Compliance Category

Laboratory Developed Test (LDT)

Note

Hotline History

N/A

CPT Codes

83520

Components

Component Test Code* Component Chart Name LOINC
3005864 Transforming Growth Factor beta1, Plasma 49853-5
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Cytokine
  • cytokines
  • plasma TGFB1
  • TGF-beta 1
  • TGFbeta1
Transforming Growth Factor beta1, Plasma