Complement C1q, Quantitative

Test ID: 

704794

CPT code:

86160

Clinical Use:

Evaluate the classical complement pathway

Test Information:

Levels are depressed in various immunodeficiency states including x-linked hypogammaglobulinemia and severe combined immunodeficiency (10% to 25% of normal levels). Genetic deficiencies of C1q have been described.

Specimen Type:

Serum

Requested Volume: 

1 mL

Minimum Volume: 

0.1 mL

Container Type: 

Red-top tube or gel-barrier tube

Collection:

Separate serum from cells.

Storage Instructions:

Room temperature

Stability Requirements:

Expected Turnaround Time:

1 to 2 Days

Rejection Criteria

Chylous serum; gross bacterial contamination. Plasma should be avoided since fibrin may result in the appearance of nonspecific precipitation, which may adversely affect interpretation.