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HelpTest ID FC4AL C4 Level by RIA
Specimen Required
Container/Tube: Lavender top tube
Preferred: Lavender top tube
Acceptable: Lavender top tube
Specimen Volume: 2 mL
Collection Instructions: Draw blood in a lavender top (EDTA) tubes(s), plasma gel tube(s) is not acceptable. Mix well, centrifuge at room temperature within one half hour of draw (preferable immediately after venipuncture) and freeze immediately on dry ice or at -70 C. Send 1 mL of EDTA plasma frozen in plastic vial.
Complete and submit with specimen:
1. National Jewish Complement request form
Secondary ID
75726Method Name
Radioimmunoassay (RIA)
Reporting Name
C4a LevelSpecimen Type
Plasma EDTASpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | |
|---|---|---|---|
| Plasma EDTA | Frozen | 365 days |
Reference Values
0 - 2830 ng/mL
Day(s) Performed
Monday through Friday
Report Available
20 to 44 daysPerforming Laboratory
National Jewish HealthTest Classification
This test uses a kit/reagent designated by the manufacturer as for research use, not for clinical use. The performance characteristics for this test have been validated by National Jewish Health. It has not been cleared or approved by the U.S. Food and Drug Administration. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. This laboratory is certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA-88) as qualified to perform high complexity clinival laboratory testing.CPT Code Information
86160