Direct Thrombin Inhibitor

General Information

Lab Name
Direct Thrombin Inhibitor
Lab Code
DTI
Epic Name
Direct Thrombin Inhibitor
Description

Patient plasma is diluted 1:3 with normal pooled plasma and the thrombin time is measured. The presence of a direct thrombin inhibitor is based on prolongation of this thrombin time assay."

Synonyms
Argatroban Level, Bivalirudin level, Lepirudin Level, Thrombin Inhibitor-Direct
Components

Interpretation

Method

Clot based

Reference Range
See individual components

Ordering & Collection

Specimen Type
Blood
Collection

3 or 5 mL BLUE TOP tube

Handling Instructions

The Laboratory MUST process specimen within 6 hours of blood collection

Quantity
Requested: entire specimen
Minimum: 1.0 mL plasma

Processing

Receiving Instructions

Take specimen to the Coag

Outside Laboratory: Centrifuge for 10 minutes, remove plasma and re-spin plasma for another 10 minutes. Decant and freeze plasma (minimum 1.0 mL) @-20°C to -80°C. Send FROZEN on dry ice.

Misc Sendout

Performance

Lab Department
Coagulation(COAG)
Frequency
Daily
Available STAT?
Yes
Performing Location(s)
HMC Coagulation
206-520-4600

325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420

UW-NW Main Lab
206-668-1344

UW Medical Center – Northwest
1550 N 115th Street, A200
Seattle, WA 98133

UW-MT Coagulation
206-520-4600

Clinical Lab, Room NW220,
University of Washington Medical Center,
1959 NE Pacific street, Seattle, WA 98195

Billing & Coding

CPT Codes
80299
LOINC
3243-3
Interfaced Order Code
UOW1505