Complement C1q, quantitative

Alphabetical Test listing

Complement C1q, quantitative-994

Test name:

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Useful for:

This test is used as an aid in the diagnosis and treatment of systemic lupus erythematosus (SLE).

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Minimum volume:

0.1 mL
Submitting the minimum volume does not allow for repeat testing

Collection instructions:

Immediately following collection, mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube, 5 mL

Alternate processing instructions:

Allow sample to clot
Spin within two (2) hours of sample collection
Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum

Alternate transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x3

Reason for rejection:

Chylous or lipemic serum
Hemolysis
Gross bacterial contamination
Plasma should be avoided since fibrin may result in the appearance of nonspecific precipitation, which may adversely affect interpretation

Performing lab:

LabCorp Burlington (016824): R-NX

Days set up:

Mo, Fr

TAT:

7 - 11 days

Method:

Radial immunodiffusion (RID)

Reference ranges:

10.3 - 20.5 mg/dL

CPT codes:

86160

LOINC code:

Result 4478-4

Date created:

05/31/2019

Revised date:

02/22/2024

Review date:

02/22/2024