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Order Name LAB325 aPTT

Important Note

*This test is orderable in Cerner as PTT UVM

Specimen Information

Container Specimen Temperature Collect Vol Submit Vol Min Vol Stability
Blue Top Tube Whole Blood Ambient To fill line To fill line To fill line 4 hours
Blue Top Tube Plasma Frozen To fill line 2 mL plasma 0.5 mL plasma 6 months

TUBE MUST BE FULL AT COLLECTION. Whole blood should remain at ambient temperature until processed. If you are using the PTT result to monitor heparin therapy sample MUST be processed within 75 minutes of collection. Refer to Coagulation Specimen Handling prior to collection. Submit frozen plasma if not received in the lab within 4 hours.

Method

Photo Optical Clot Detection

CPT(s)

Description CPT Code
PTT 85730

 

Reference Range

Varies according to reagent lot, see report or call if needed.

Instrumentation

ACL Top

Performing Location

University of Vermont Medical Center

Test Schedule / Analytical Time / Test Priority

Daily / 24 Hours / Available STAT

Section

Coagulation

Is the UVMMC lab NY State Certified to perform this testing?  Yes/No

Yes