C3 Complement (RDL)

CPT: 86160
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Synonyms

  • Complement Component 3

Test Includes

This test is a component of ANA Profile 11, ANA Profile 12, ANA 12 Plus Profile, Vasculitis Panel.


Expected Turnaround Time

5 - 7 days


Related Documents


Specimen Requirements


Specimen

Serum


Volume

1 mL


Minimum Volume

0.3 mL (Note: This volume does not allow for repeat testing.)


Container

Gel tube or red-top tube


Collection

Separate serum from cells within one hour. Transfer to a plastic transport tube before freezing.


Storage Instructions

Store frozen or refrigerated.


Stability Requirements

Temperature

Period

Room temperature

4 days

Refrigerated

8 days

Frozen

8 days

Freeze/thaw cycles

Stable x1


Causes for Rejection

Grossly hemolyzed; bacterial contamination; lipemic, icteric, non-serum specimen types


Test Details


Use

Measurement of C3 is used to detect individuals with inborn deficiency of this factor or those with immunologic disease in whom complement is consumed at an increased rate. These include lupus erythematosus, chronic active hepatitis, certain chronic infections, post-streptococcal and membranoproliferative glomerulonephritis, and others.


Methodology

Turbidimetry


LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
520168 C3 Complement (RDL) 4485-9 520169 C3 Complement (RDL) mg/dL 4485-9

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