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Lab Test Dictionary

Complement Biomarker Panel (CBP)

Specimen Type

Serum and Plasma

Performing Lab

University of Iowa

Epic ID

Other Reference Test

Standard TAT

4 Weeks

Collection Information

Specimen Required

4-6 mL Blood collected in a (red-top) tube ***and*** 4-6 mL Blood collected in an EDTA (lavender-top) tube

Container Type

Red-Top Tube and EDTA (Lavender-Top) Tbue

Processing Information - Lab Use Only

Transport Temperature


Rejection Criteria

Thawed samples

Test Volume Required

3 mL Serum ***and*** 3 mL Plasma

Minimum Test Volume

2 mL Serum ***and*** 2 mL Plasma

Processing Instructions

All serum and plasma samples must be processed and frozen down to -80 C immediately after collection. Sample type must be clearly labeled (either serum or plasma). Complete a Univ of Iowa MORL-Kidney Testing Requisition form and submit with samples frozen Monday-Thursday only, no weekends or holidays deliveries.

Included Tests

C3, C3c, C4, FB, Ba, Bb, C5, FD, Properdin levels, Soluble C5b-9 (sMAC), FI and FH levels; appropriate for following biomarker levels


Not genetic; Ok to send on outpatients and inpatients.

CPT Codes

83520, 86160 (x10)