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Test Compendium

1061: APTT

Test Code

  • 1061

Test Synonym

  • ACTIVATED PTT, APTT, PARTIAL THROMBOPLASTING TIME, PTT, Partial Thromboplastin Time (PTT)

Volume

  • specimen must reach fill line in vial

Minimum Volume

  • See Below

Specimen Requirements

  • Whole Blood

Container

  • Light Blue Top Tube

Storage

  • Refrigerated

Turn Around Time

  • 1 day

Special Instructions

  • 1 Light Blue Top Tube - must draw to the fill line on vial or sample will be rejected

Specimen Stability

  • 48 hours at 2-8 degrees C

Reference Range

  • Fasting Sex Message Lines Ref Ranges Unit of Measure
    *Please note change in reference range 27.5 - 37.5 Seconds