Test ID: C4d

Test Name: C4d Complement Level

Test Codes

Exsera Order Code: C4DL
CPT Code: 86160

Specimen Requirements

Specimen Type: EDTA Plasma

Collection Tube: Lavender top, K2 or K3 EDTA

Collection Instructions: Store samples on wet ice and centrifuge within 2 hours of draw. Then transfer to cryogenic tubes and aliquot as necessary before storing tubes in the appropriate freezer.

Volume Required: ~200 mcL

Storage/Transport Temperature: Frozen @ -80C

Stability: 1 year minimum while stored @ -80C from date of draw

Unacceptable Conditions: Severely Hemolyzed or thawed/non-frozen samples

Ordering Recommendation

Reference Interval

Normal Human: BLQ - 188.9 ng/mL

ULOQ/ALQ: N/A

LLOQ/BLQ: N/A

Test Classification

This test is a laboratory developed test per the US Food and Drug Administratio's guidelines and is used per manufacturer's instructions and per Exsera's SOPs. Performance characteristics were verified by Exsera in a manner consistent with CAP/CLIA requirements.

Methodology

ELISA or EIA

Patient Reporting

Standard: 7-14 Days

Aliases

C4d, Complement C4d Level, C4d Fragment

Additional Notes

Diagnostic samples held for 1 month before disposal of remaining sample