C4 Level


Abbrev Code:XMISC   
Order Code:LAB4909Order Name:Laboratory Miscellaneous Order
Methodology:Turbidimetry
CPT Codes: 86160 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Thur; results are reported within 2-3 days.


Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:1.2 mL
Container:Red (no gel)
Alternate Containers: Red or gold (gel)
Causes for Rejection:Thawed specimen. Samples stored at -20°C.


Processing and Shipping

Specimen Processing:Allow specimen to clot at room temperature for 30-60 minutes. Within 2 hours of collection, centrifuge and aliquot 1 mL, 0.5 mL minimum. Store on dry ice or at -70°C.
Shipping Instructions:Ship overnight on dry ice.
Stability:After separation from cells: 4 hours at room temperature; 8 days refrigerated; 3 months frozen ≥-20°C.
Test Performed at or Referral Lab Lab Sendouts  (National Jewish Health)
Referral Lab number:C4


Interpretive

Reference Range:

Age

Male
mg/dL

Female
mg/dL

Newborn – 2 mo

13-38

13-38

3 mo – 19 y

11-61

11-61

20 y and older

19-52

19-52

 

 



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