44 - Tryptase | Clinical | Eurofins-Viracor

Clinical Utility

Tryptase is a neutral protease of molecular weight 134,000 that is found almost exclusively in mast cells. It is used as a marker to monitor and analyze reactions involving mast cells.

Procedure

Enzyme Immunoassay (FEIA). It is manufactured by Phadia for the UniCAP instrument. The performance characteristics of this test have been determined by Viracor Eurofins. This test has been cleared or approved for diagnostic use by the U.S. Food and Drug Administration.

Turnaround Time

3 business days from receipt of specimen

Specimen Information

Specimen Type	Test Code	CPT Code	NY Approved	Volume	Assay Range	Special Instructions
plasma	44	83520	Yes	1 mL (min. 500 uL)	The result is reported in ng/mL. The assay range is approximately 1.0 to 200. The reference range for a healthy population is less than 11.4.	Collect 1 mL The specimen can be stored for 3 weeks at 4 to 25° C. Ship via overnight courier at ambient temperature. During summer months ship overnight on dry ice or cold pack. Stability 25 days ambient, 25 days refrigerated, >25 days frozen.
serum	44	83520	Yes	1 mL (min. 500 uL)	The result is reported in ng/mL. The assay range is approximately 1.0 to 200. The reference range for a healthy population is less than 11.4.	Collect 1 mL The specimen can be stored for 3 weeks at 4 to 25° C. Ship via overnight courier at ambient temperature. During summer months ship overnight on dry ice or cold pack. Stability 25 days ambient, 25 days refrigerated, >25 days frozen.

Disclaimer

Specimens are approved for testing in New York only when indicated in the Specimen Information field above.

The CPT codes provided are based on Viracor Eurofins' interpretation of the American Medical Association's Current Procedural Terminology (CPT) codes and are provided for general informational purposes only. CPT coding is the sole responsibility of the billing party. Questions regarding coding should be addressed to your local Medicare carrier. Viracor Eurofins assumes no responsibility for billing errors due to reliance on the CPT codes illustrated in this material.

References

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