Test Code C4 C4 Complement, Quantitative
Additional Codes
| Hospital Ordering Code |
|---|
| LAB151 C4 COMPLEMENT |
Specimen Requirements
Preferred Collection Container:
SST (Serum Separator)
Light Green (Lithium Heparin Plasma Separator Tube)
Also Acceptable Collection Container:
Red (No Additive)
Green No Gel (Lithium Heparin)
Collection Information:
Collect blood in a serum separator or heparin plasma separator tube.
Transport Information:
Centrifuge and aliquot 1.0 mL of serum or plasma into a plastic transport vial. Send frozen.
Minimum Sample Volume:
0.3 mL of serum or plasma (approximately 0.6 mL of whole blood based upon a normal patient hematocrit)
Unacceptable Conditions:
Specimens collected in EDTA tubes
Stability Comments:
Remove serum from cells ASAP and freeze.
Stability
Refrigerated Stability:
2 days
Frozen Stability:
7 days
Ambient Stability:
2 days
Performing Laboratory
Pathology Laboratory, UnityPoint Health, Des Moines
CPT
86160
Methodology
Turbidometric
Performance
Monday-Friday 8:00a to 10:00p
Saturday-Sunday 9:00a to 5:00p
Analytical Time:
1 day
Testing Laboratory:
Pathology Laboratory
Laboratory Section:
Core Laboratory
Alias
C4 (4th Component of Complement), Serum, C4 (Fourth Component of Complement), Serum, C4 Complement Serum, C4, Serum, Complement C4, Serum, Fourth Component of Complement, Hereditary Angioedema Panel (3 tests)