ST2 Level

Label Mnemonic:	ST2
Epic code:	LAB8790
Downtime form:	A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Commercial Mailout Laboratory
6240-8 RCP
356-8593

Specimen(s):

Serum

Specimen Instructions:

Specimen must be labeled with patient's name and collection date.

Collection Medium:

Red top tube 5 mL (Clot Activator)

Minimum:

1 mL serum in red top tube

Rejection Criteria:

Invalid specimen type, inadequate volume, gross hemolysis or gross lipemia, sample not frozen upon receipt.

Delivery Instructions:

Deliver to laboratory immediately after collection. Critical frozen.

Turn Around Time:

3 business days upon receipt at reference laboratory

Reference Range:

The reference range for a healthy population is less than 30.0 ng/mL. However it should be noted that these ranges are obtained from a limited population of apparently healthy adults and are not diagnostic thresholds.

Comments:

This test is used for the quantitative measurement of ST2. ST2 is member of the Toll-interleukin 1 receptor family, and functions as a down-regulator of the pro-inflammatory cytokines IL-1, IL-6 and TNF- α. ST2 has been shown to be elevated in inflammatory conditions.

Methodology:

Enzyme-Linked Immunosorbent Assay (ELISA)

CPT Code:

83006