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Test Code LAB325 aPTT

Important Note

Test subject to Medicare National Coverage Determination (NCD) 190.16 - Partial Thromboplastin Time (PTT).

Additional Codes

Orderable Codes:

Epic Code Atlas Code Mayo Access ID Order LOINC
LAB325 PTT FAH168 14979-9

Result Component(s):

Reporting Name Epic Code Atlas Code Mayo Access ID Result LOINC
PTT 12301000136 PTT FAH168 14979-9

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.

Test Schedule / Analytical Time / Test Priority

Daily / 24 Hours / Available STAT

Method

Photo Optical Clot Detection

CPT(s)

Description CPT Code
PTT 85730

 

Instrumentation

ACL Top

Reference Range

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

Section

Coagulation

Performing Location

University of Vermont Medical Center

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

Yes