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Test Code C3 Neph C3 Nephritic Factor

Important Note

Specimen must be received by the lab within 30 minutes. CPA: Freeze within ONE hour of collection.

Clinical System Name

C3 Nephritic Factor


C3 Nefs

Sample Requirements

Specimen: Whole Blood

Container(s): Red

Preferred Vol: 4.0 mL

Minimum Vol: 2.0 mL


Note: Draw blood in a plain, red-top tube. Gel separator is unacceptable.

Processing Instructions

Reject due to: Gold/SST or Hemolysis

Spin: Y

Aliquot: Y

Temp: -70 C

Storage Location: Allow blood to clot at room temp. Spin after roughly 30 min (or when blood is clotted). Aliquot serum into tube affixed with a large Cerner label. Place the sample in the CPA -70 freezer, Send Outs rack.


Off-site Collection:


STAT Performed TAT
N Collected daily 1 m


Performing Laboratory

The University of Iowa

Molecular Otolaryngology & Renal Research Laboratories (MORL)

285 Newton Rd, 5270 CBRB

Iowa City, IA 52242-1078


Phone: (319)-335-6623


Department: Send Outs

Phone Number: (206) 987-2563



Reference Range

Interpretive report provided.


Method: None

Analytical Volume: None specified


CPT Codes

86161, 86235

Send Out Instructions

Reference Test Name: C3 Nephritic Factor
Reference Test Number: C3Nef (C3CSA)
Instructions: Ship frozen on dry ice overnight via FedEx to the University of Iowa. Saturday deliveries are not acceptable.