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COMPLEMENT COMPONENT 2

Mnemonic

C2

Specimen Collection Requirements

Collect

Serum, one 4 mL gold (SST) top tube

Handling

Allow specimen to clot for one hour at ambient temperature. Separate serum from cells ASAP and freeze. CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Preferred Volume

1.0 mL

Minimum Volume

0.3 mL (Whole Blood 0.75 mL minimum draw)

Transport

Frozen

Rejection Criteria

Specimens left to clot at 2-8°C, specimens exposed to repeated freeze/thaw cycles, nonfrozen specimens

Stability

AFTER SEPARATION FROM CELLS: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks

Testing Information

Performed

Mon, Thur

Reported

7-11 days

Method

Radial Immunodiffusion

Referral Lab

ARUP (0050148)

Reference Values

Reference Values

Interpretation provided.

CPT Codes

86160

Last Updated: Thursday, March 14, 2019 12:50:31 PM


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