Complement Activity Enzyme Immunoassay, Total : ARUP Lab Tests

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Complement Activity Enzyme Immunoassay, Total : 0050198

Mnemonic: CH50

Methodology:	Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed:	Mon-Fri
Reported:	1-4 days
Specimen Required:	Collect: Plain red. Specimen Preparation: Allow specimen to clot for one hour at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL) Storage/Transport Temperature: CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. Unacceptable Conditions: Separator tubes. Specimens left to clot at 2-8°C. Specimens exposed to repeated freeze/thaw cycles. Non-frozen specimens. Stability (collection to initiation of testing): After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks

Reference Interval: Effective May 16, 2011 60-144 CAE Units
CPT Code(s):	86162
Cross References:	CH100 (Complement Activity Enzyme Immunoassay, Total), CH50 (Complement Activity Enzyme Immunoassay, Total), Complement CH100, Total (Complement Activity Enzyme Immunoassay, Total), Complement, Total for Classic Complement Pathway Assessment-CH100 (Complement Activity Enzy, Complement, Total for Classic Complement Pathway Assessment-CH50 (Complement Activity E, Total Complement CH100 (Complement Activity Enzyme Immunoassay, Total), Total Complement CH50 (Complement Activity Enzyme Immunoassay, Total), Total Complement, for Classic Complement Pathway Assessment-CH50 (Complement Activity

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