1 mL refrigerated serum (0.5 mL minimum). Draw specimen in a barrier tube. Spin and separate the serum as soon as possible after clot formation (prefer within 45 minutes after collection). Be sure barrier forms a complete separation between serum and cells.
3 Days at 1-8 degrees C 2 Months, frozen
Minimum Collection Volume:
0.5 mL serum
Serum: Barrier or plain red-top tube, be sure serum is separated from cells within 45 minutes.
(The CPT codes provided 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 payer being billed.)