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Lab Test Dictionary

Complement Component 2 (0050148)

Methodology

Quantitative Radial Immunodiffusion


Synonyms

C2 Antigen; C2 Level; Classical Pathway - Complement; Complement Classical Pathway; Second Component of complement

Specimen Type

Serum

Performing Lab

ARUP


Epic ID

Other Reference Test

Lab Test Days

Monday and Thursday

Standard TAT

5-10 Days


Collection Information

Specimen Required

1-2 mL Blood

Container Type

Gold Serum Separator Tube (SST)


Processing Information - Lab Use Only

Transport Temperature

Frozen Only

Specimen Stability

Room Temp: 2 Hours; Refrigerated: Unacceptable; Frozen: 2 Weeks (Preferred)

Rejection Criteria

Non-frozen specimens; Specimens exposed to repeated freeze/thaw cycles; Specimens left to clot at refrigerated temperature

Test Volume Required

1 mL Serum

Minimum Test Volume

0.3 mL Serum

Processing Instructions

Allow specimen to clot for one hour at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Complete an ARUP requisition and submit with sample frozen with daily Apollo Courier pick up.


CPT Codes

86160


Revised

7/19/23

Initials

SA