C3a Level By RIA, Plasma

Test Code

13526

CPT Codes
86160<br>Restricted Client Code

Preferred Specimen

1 mL plasma submitted in a sterile, plastic screw cap vial

Minimum Volume

0.5 mL

Instructions

Plasma from a lavender top (EDTA) tube is the only acceptable sample type. Mix sample thoroughly. Keep tubes cold on wet ice or with a cold pack after collection.

Within 30 minutes of venipuncture, centrifuge at 4°C. Transfer the cell-free plasma to a clean tube and immediately freeze on dry ice or at -70°C or below.

Ambient temperature for centrifuging is acceptable provided that the time between collection, spinning and decanting to the freezer, is minimized (approximately 30 minutes).

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 1 year

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Thawed specimen

Methodology
Radial Immunodiffusion

Setup Schedule

Set up: Varies; Report available: 21 days

Reference Range

See Laboratory Report

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.