C1Q Binding Assay C1QB

Method(s) Semi Quantitative Enzyme Linked Immunosorbent Assay
Specimen Required
Collect

One 6 mL plain red or gold (SST) top tubes.

Transport

1 mL serum, frozen. (Min: 0.3 mL)

Remarks

CRITICAL FROZEN. Allow complete clotting of red blood cells (up to 1 hour), then separate serum from cells within 30 minutes and freeze immediately (Min: 0.3 mL).

If ordered in conjunction with a Circulating Immune Complex, C3 fragments, transfer TWO 1 mL aliquots of serum for testing.

Stability

(collection to initiation of testing) After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks (avoid repeated freeze/thaw cycles)

Unacceptable Conditions Nonfrozen samples.
Schedule Mon, Thu, Sat
Billing Code 5011014
CPTCode 86332
Preferred Specimen Collection Device(s)
Reference Interval

Less than or equal to 3.9 ug Eq/mL is considered negative for circulating complement binding immune complexes.

No Appointment Necessary
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12 Patient Service Centers in Central New York.

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