INR


Test Information

Test Name

INR

Synonyms

Warfarin monitoring; International normalized ratio; PR; Prothrombin Ratio; Prothrombin Time

Department

Haematology

Price

$15.00

Price Disclaimer

Many services are free for eligible patients. A minimum charge may apply. Prices listed are for unfunded, individual, requests. Please contact us for commercial testing.

Preferred Specimen

Citrate

Testing Location

All

Turn Around Time

1 Day


Collection Information

Patient Requestable

Yes

Preparation

For Patients that require adjusted citrate tubes

  • Main lab only
  • Haematology will assess the need for a specialised collection tube and notify the Patient Services Lead.
  • Consult the site lead - Haematology will provide the adjusted citrate tube. Specific collection requirements apply. Refer to Test Reference Manual.
  • Site lead will issue a card to the patient for future collection.

Processing Information

Registration Code

PR (See notes for Clinical trials)

Notes

  • INR (Prothrombin ratio) specifically requested in a small number of cases, add LOOK in clinical details
  • Please note: Any Clinical trials that request PR and APTT, register CS

Methodology

Sample Storage

Ambient

Sample Stability

24 hours

Interpretations

View Interpretations