PathTest - Test Search

Test Code: PT Preferred Name Prothrombin time

Results Avail After Hours:Yes

Urgent:45 minutes

Test Frequency:Daily

Routine:2 hours

MBS Status:Medicare Item

Min. Re-Test Interval:24 hours

Public price:

Back

Test Tubes

Specimen Type	Specimen Volume	Tube Type
Blood (adult)	2.7 mL	Sodium Citrate 2.7 mL (Solid Pale Blue Top)
Blood (paediatric)	1.8 mL	Sodium Citrate 1.8 mL Paed (Clear/Pale Blue Inner)
Blood ((neonatal)	1.0ml	Sodium Citrate 1.0 mL Neonate (Pale Blue Top)

COLLECTION NOTES

Accurate filling of specimen tube is essential.

GENERAL NOTES

The PT is a screening test for the extrinsic coagulation pathway. It is frequently used to monitor anticoagulant therapy using vitamin K antagonists such as warfarin by conversion to an international normalised ratio (INR). A prolonged Prothrombin time in a patient taking Rivaroxaban may suggest significant levels of the drug. A Rivaroxaban assay may be of value..