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22462 Complement, C-2 Level (C2L)

Complement, C-2 Level (C2L)
Test Code: MISC
Synonyms/Keywords
C2, C 2
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
​Plasma ​EDTA Lavender Top Tube (LTT) ​1 mL ​0.25 mL
Collection Processing Instructions

​Plasma from a lavender top (EDTA) tube is the only acceptable sample type. Mix sample thoroughly.

Centrifuge at room temp within one half hour of collection; preferably immediately after venipuncture. Transfer the cell-free plasma to a clean tube and immediately freeze the cell-free plasma on dry ice or at -70°C.
Specimen Stability Information
Specimen Type Temperature Time
​Plasma ​Frozen (-70°C) ​1 year
Rejection Criteria
Thawed specimen Reject
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
National Jewish Center ​Varies ​Up to 4 weeks ​Radial Immunodiffusion (RID)
Reference Range Information
Performing Location Reference Range
National Jewish Center​ ​Male: 22.2-39.8 ug/mL
Female: 22.2-39.8 ug/mL
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​86160
Synonyms/Keywords
C2, C 2
Ordering Applications
Ordering Application Description
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
​Plasma ​EDTA Lavender Top Tube (LTT) ​1 mL ​0.25 mL
Collection Processing

​Plasma from a lavender top (EDTA) tube is the only acceptable sample type. Mix sample thoroughly.

Centrifuge at room temp within one half hour of collection; preferably immediately after venipuncture. Transfer the cell-free plasma to a clean tube and immediately freeze the cell-free plasma on dry ice or at -70°C.
Specimen Stability Information
Specimen Type Temperature Time
​Plasma ​Frozen (-70°C) ​1 year
Rejection Criteria
Thawed specimen Reject
Reference Range Information
Performing Location Reference Range
National Jewish Center​ ​Male: 22.2-39.8 ug/mL
Female: 22.2-39.8 ug/mL
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
National Jewish Center ​Varies ​Up to 4 weeks ​Radial Immunodiffusion (RID)
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​86160
For most current information refer to the Marshfield Laboratory online reference manual.