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GENERAL INFORMATION:

 

WEBSITES:

Mayo Clinic Laboratories

Test Code C4 C4 (Complement 4), Serum

Additional Codes

Ordering Mnemonic
C4

Methodology

Blanked Endpoint

Performing Laboratory

Holland Hospital Laboratory Services

Specimen Requirements

Submit only 1 of the following specimens:

 

Serum

Container/Tube: Serum gel tube

Specimen Volume: 1 mL of serum

Collection Instructions:

1. Indicate serum.
2. Label specimen appropriately (serum).

3. Centrifuge within 2 hours of collection.

 

Plasma  

Container/Tube: Mint-top (lithium heparin) tube, or Purple EDTA

Specimen Volume: 1 mL of plasma

Collection Instructions:

1. Indicate plasma.
2. Label specimen appropriately (plasma).

3. Centrifuge within 2 hours of collection.

Specimen Transport Temperature

Refrigerate <24 hours/Frozen OK

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

86160 (HH Bill Code 0205114)

Reference Values

16.5-49.3 mg/dL