Test Overview
Test Methodology


Reference Range *

By report

Test Details
Days Set Up
Monday - Friday
Analytic Time

2 - 7 days

Soft Order Code
Reference Laboratory
Mayo Wild 85 (ZW85) (National Jewish Health RIFH)
Special Testing
Specimen Requirements

Collect specimen in a red top tube; do not use SST tube. Centrifuge, aliquot serum into a plastic vial and freeze. For maximum clinical significance, collect a Peak specimen within 15 minutes after the end of an I.V. infusion or 90 minutes after oral intake.

Collection Instructions

Collect blood in a red top tube. Spin and aliquot into a screw capped plastic tube. Freeze and send to Specimen Processing. Have ordering provider fully list: drug dose amount, frequency, method, and date and time of last dose prior to draw.

Alternate Specimen
Red top tube is preferred. Green top tube is acceptable.
Rejection Criteria
SST tube not acceptable.
Yellow Top Tube
Red Top Tube
Normal Volume
2 mL serum
Minimum Volume
0.5 mL serum
Additional Information

Test sent to Mayo Medical Laboratories; performed by National Jewish Health.

CPT Code
NY State Approved