Test Code LAB151 Complement Component 4 (C4)
Additional Codes
SQ : C4
COLLECTION
SST (Serum Separator) PREFERRED
Light Green (Heparin Plasma Separator Tube) PREFERRED
Red (No Additive)
Green No Gel (Lithium Heparin)
Collection Information:
Collect blood in a serum separator or heparin plasma separator tube.
Sample Volume Requirements:
Centrifuge and aliquot 1.0 mL of serum or plasma into a plastic transport vial.
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
Frozen Stability:
7 days
Stability Comments:
Remove serum from cells ASAP and freeze.
PERFORMING LAB
Performed:
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
CPT Code
86160