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C1 ESTERASE INHIBITOR, FUNC
Test Code120220
CPT Codes
86161
Includes
Enzyme immunoassay (EIA) to measure functional activity. This method provides C1 esterase function activity as a percentage of mean normal activity.
Preferred Specimen
"Serum or plasma, frozen
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Minimum Volume
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0.1 mL
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0.1 mL
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Instructions
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Separate serum or plasma from cells and transfer to a plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
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Separate serum or plasma from cells and transfer to a plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
"
Transport Container
"Red-top tube or lavender-top (EDTA) tube
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"
Transport Temperature
"Freeze (A serum sample should not be stored at room temperature [15°C to 30°C] for longer than six hours. EDTA plasma may be held at room temperature for 24 hours.)
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Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
"Plasma other than EDTA; thawed or nonfrozen sample
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Methodology
"Enzyme immunoassay (EIA) "
Reference Range
"% of mean normal activity:
• Abnormal: <41%
• Equivocal: 41% to 67%
• Normal: >67%
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• Abnormal: <41%
• Equivocal: 41% to 67%
• Normal: >67%
"
