Complement, Total (CH50)

Test Code

618

CPT Code(s)

86162

Test Code

618

CPT Code(s)

86162

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Complement, Total (CH50) - CH50 is a screening test for total complement activity. Levels of complement may be depressed in genetic deficiency, liver disease, chronic glomerulonephritis, rheumatoid arthritis, hemolytic anemias, graft rejection, systemic lupus erythematosis, acute glomerulonephritis, subacute bacterial endocarditis and cryoglobulinemia. Elevated complement may be found in acute inflammatory conditions, leukemia, Hodgkin's Disease, sarcoma, and Behcet's Disease.

Test Resources

Topic Brief

Laboratory Diagnosis of Peripheral Neuropathy

Test Details

Methodology

Liposome

Reference Range(s)

31-60 U/mL

Alternative Name(s)

Hemolytic Complement

LOINC® Codes, Performing Laboratory

Service Area must be determined

Methodology

Liposome

Reference Range(s)

31-60 U/mL

Alternative Name(s)

Hemolytic Complement

LOINC® Codes, Performing Laboratory

Service Area must be determined

Preferred Specimen(s)

1 mL frozen serum

Minimum Volume

0.5 mL

Transport Container

Transport tube

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 7 days

Setup Schedule, Collection Instructions, Reject Criteria

Service Area must be determined

Preferred Specimen(s)

1 mL frozen serum

Minimum Volume

0.5 mL

Transport Container

Transport tube

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 7 days

Setup Schedule, Collection Instructions, Reject Criteria

Service Area must be determined

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection is not available in your area through Quest Mobile.

Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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