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Lab Test Dictionary

TPSAB1 Copy Number Analysis by ddPCR (3017399)

Methodology

Droplet Digital PCR (ddPCR)


Specimen Type

Whole Blood or Bone Marrow

Performing Lab

ARUP


Epic ID

Other Reference Test

Lab Test Days

Varies

Standard TAT

10-14 days


Collection Information

Specimen Required

5 mL whole blood or 3ml bone marrow

Container Type

Lavender EDTA

Collection Instructions

Green (sodium heparin) also acceptable


Processing Information - Lab Use Only

Transport Temperature

Refrigerated

Specimen Stability

Refrigerated=7 days

Rejection Criteria

Plasma, serum, FFPE tissue blocks/slides, or fresh or frozen tissue. Specimens collected in anticoagulants other than EDTA (purple) or sodium heparin (green). Clotted or grossly hemolyzed specimens.

Test Volume Required

5 mL blood or 3ml bone marrow

Minimum Test Volume

1 mL blood or bone marrow

Processing Instructions

Complete an ARUP requisition and submit with specimen refrigerated. Send with ARUP courier Monday-Friday.


Comments

Use to assess TPSAB1 copy number variants in the diagnosis of hereditary alpha-tryptasemia (HaT). Outpatients require insurance auth. Ok to draw on Inpatients.


CPT Codes

81479


Revised

5/9/26

Initials

IM