Thrombin Time

Label Mnemonic:	TT
Epic code:	LAB324
Downtime form:	Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Hemostasis/Thrombosis
6240 RCP
356-3573

Specimen(s):

Collection Medium:

Light Blue top tube 1.8 mL (Na Citrate)

Minimum:

Full draw; 1.8 mL light blue top (mix well). Tube must be at least 90% full.

Rejection Criteria:

Short drawn tube, clot, traumatic tap (excessive hemolysis).

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Turn Around Time:

3 hours (upon receipt in laboratory)

Reference Range:

17-20 seconds
Reference range updated on 12/16/2019 due to new assay reagent.

Comments:

Deliver to laboratory promptly.

Methodology:

Optical clot detection.

CPT Code:

85670