Partial Thromboplastin Time

Specimen Tube Type Transport

Blue top with Sodium Citrate

Container Whole Blood Required

1 Full Sodium Citrate Blue Top tube

Critical Value

Inpatients - For all ages and sex results >105.0 seconds Outpatient - For all ages and sex results >70.0 seconds

Summary Test Name

Partial Thromboplastin Time

Specimen Preparation Outreach

Room temperature until courier pickup

Specimen Stability

4 hours at room temperature

Specimen Transport

Room temperature

Specimen Preparation In House

Spin/separate until analysis

Stat Availability

24 hours a day, seven days a week

Test Turnaround Time Routines And Stats

R 4 hours S 2 hours

Reference Value

Normal Range: Male/Female and all ages the same: 23-35 seconds