Test Code APTT Activated Partial Thromboplastin Time (APTT)

Important Note

Direct oral anticoagulant medications (non-Vitamin K) should not be monitored with APTT because the effect of this test is not predictable.

North Ottawa Community Hospital

Container/Tube: Light-blue top (sodium citrate)

Specimen Volume: 3 mL

Collection Instructions: Tube must be completely filled.

Special Instructions: Test must be performed within 4 hours of draw.

Rejection: Hemolysis

23.6-32.8 seconds

Critical value (automatic call-back): >78 seconds

Monday through Sunday

Optical Detection

Ambient

85730