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C4 complement-673

Test info

Test name:

C4 complement

Test number:

673

Excellian order number:

86160.1

Abbreviation:

Specimen

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Minimum volume:

0.2 mL

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

Red/grey serum separator (SST) vial/tube, 10 mL

Alternate processing instructions:

Allow sample to clot
Spin
Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collection

Alternate transport container:

False bottom plasma/serum transport vial/tube (AHL)

Red/grey serum separator (SST) vial/tube, 10 mL

Transport and stability:

Refrigerated (preferred) - 7 days

Frozen (OK) - 3 months

Reason for rejection:

Improper labels (unlabeled or mislabeled)
Hemolysis (some procedures)
Improper anticoagulant or ratio
Delay in transport
Improper storage temperature affecting results
Improper container
Leaking container resulting in compromised specimen
Quantity not sufficient (QNS)

Performance

Performing lab:

AHL - Immunology: I

Days set up:

Mo - Fr

TAT:

1 - 2 days

Method:

Turbidimetric

Clinical and Interpretive info

Reference ranges:

12.9 - 39.2 mg/dL

Billing

CPT codes:

86160

Tracking

Date created:

11/30/2001

Revised date:

02/02/2022

Review date:

01/11/2024