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GENERAL INFORMATION

SPECIMEN COLLECTION INFORMATION

PATIENT COLLECTION INFORMATION

REQUISITIONS- FORMS

LINKS

Mayo Clinic Laboratories

Test Code C341Q Complement C3 and C4 with Anti-C1q Antibodies, Serum


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial


Specimen Type

Serum

Specimen Minimum Volume

0.9 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  21 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Reference Values

C3:

75-175 mg/dL

 

C4:

14-40 mg/dL

 

AC1Q:

<20 U/mL (Negative)

20-39 U/mL (Weak Positive)

40-80 U/mL (Moderate Positive)

>80 U/mL (Strong Positive)

Day(s) Performed

C3, C4: Monday through Friday

AC1Q: Wednesday

Report Available

2 to 8 days

Specimen Retention Time

2 weeks

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86160 x2

83520