Important Information about Monkeypox from NC-DHHS (5/20/2022) to All North Carolina Clinicians and Laboratorians

Thrombin Clotting Time (TCT)

Light Blue Top Tube

Tube Type

Test ID LAB324
CPT Code(s) 85670
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station 30 Routine: 888 STAT
Specimen Routine: 2.7 mL blood/light blue top tube; see Comments for additional information
Pediatric: 1.8 mL blood/ pediatric light blue top tube
Unspun: 4 hours
Room temperature: 4 hours
Refrigerator: NO
Frozen: 14 days (platelet poor plasma only)
Availability Routine: 24 hrs/7 Days
Turnaround Time STAT 1 hr., Routine 2 hrs.
Reference Range <6 mos: Undefined
>6 mos: 12.9-16.5
Critical: >60.1
Comments Deliver Immediately
References Ranges change with reagent lot

Reviewed by Christopher Parker on November 15, 2021

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514