Support Clinics

Warfarin Care Clinic

Your healthcare professional may have prescribed you the medication “Warfarin” so as to help prevent you from forming blood clots in blood vessels (thrombosis and embolism). QML Pathology operates a Warfarin care clinic to assist your treating doctors with the management of your Warfarin dosing requirements

Despite its effectiveness, treatment with Warfarin requires ongoing monitoring of your blood by INR (International Normalised Ratio) testing to ensure an adequate yet safe dose of Warfarin is taken. A high INR predisposes you to a high risk of bleeding, while an INR below the therapeutic target indicates the dose of Warfarin may be insufficient to protect you.

Our dedicated Warfarin Care team of specialist pathologists, medical practitioners and health professionals work together to ensure that patients are provided with their INR results and updated Warfarin doses in a timely manner.

To contact our Warfarin Care Clinic, or if you have any concerns or queries, please contact our support service via email, making sure to quote your QML Pathology reference number in the email subject line, or phone 1300 661 963 during the following hours: 

Monday - Friday

  • Voice mail service available 7.00am to 10.00am
  • Staff available to take calls 10.00am to 3.00pm
  • Patients can email the Warfarin Clinic on


  • Staff available to take calls 10.00am to 1.00pm
  • Patients can email the Warfarin Clinic on

Becoming a Member of the Warfarin Care Clinic

Your treating doctor remains your primary medical officer. If they require QML Pathology to provide Warfarin dosing support they must register you on the Warfarin registration line.  Patients cannot self register because we require a detailed medical history before commencing Warfarin control.

Getting Tested as a Member of Our Warfarin Care Clinic

It is preferable that you have your blood test prior to 12.00pm. You will have a shorter waiting time by avoiding our busy morning period, i.e., avoid prior to 10.00am. Your sample can be collected at any of our QML Pathology collection centres, click here to locate your nearest collection centre.

Please bring with you your current INR card. Where possible, please complete a QML Pathology Warfarin Control Request Form prior to your test. A copy of this form can be downloaded and printed by clicking on the link below.

QML Pathology Warfarin Request Form.

This PDF form can be completed digitally in Adobe Acrobat Reader. If you don't have Adobe Acrobat Reader Click Here to access the free download.

It is very important that you note any changes to contact details, as well as any medication changes or significant health issues. QML Pathology cannot be held responsible for any adverse event if you have provided inaccurate or incomplete information to our Warfarin Dosing Service.

Frequency of INR Blood Testing

An INR (International Normalised Ratio) blood test is performed for patients taking Warfarin.
The results of the INR are then relied upon to adjust the Warfarin dosage at particular intervals.

When you first commence taking Warfarin, INR blood tests will initially be required every 2-3 days until your INR results begins to stabilise (this may take approximately 1-2 weeks).
Testing time will then become weekly, extending up to 12 weeks as time progresses.
Please note: not all patients will be allowed to test at 12 week intervals due to various external factors, i.e., diet, other medication, illness, stress or travel.

Receiving Your Results

Upon receiving your specimen and performing our testing, QML Pathology will contact you to advise your of your updated dose of Warfarin, i.e., the tablets you will need to take until your next test. At this time you will also be informed of your test results and the date you are required to have your next blood test. When telephoned, please have a pen and paper to write this vital information down.

New Patients (less than 4 weeks on our program)  
If you are a NEW patient and have had your blood collected before 12.00pm, QML Pathology will endeavour to phone you on the same day your blood test is performed. If you do not receive a call from the Warfarin Support Service by 10.00am the next day after testing, please phone us on 1300 661 963 and quote your patient reference number. If you cannot make contact with the support service, continue with your current dose until contact is achieved. Be assured that abnormal results are dealt with as a matter of priority and you will be phoned ASAP in this caseIf you are experiencing significant bleeding you must seek medical advice ASAP through your doctor or hospital.

Established Patients (more than 4 weeks on our program)
If you are an ESTABLISHED patient and an abnormal result is identified, you will be contacted as a matter of priority by our staff. However, until we contact you it is important that you continue taking your current dose of Warfarin. If there are changes to your dose then you will be contacted within 48 hours to confirm your new dosage and the date of your next blood test. If your INR result and Warfarin doses are stable then you may receive your results in the post. If you do not receive your results within 4 working days then you should contact the Warfarin Support Service on 1300 661 963  to confirm your INR and Warfarin doses. If you are experiencing significant bleeding you must seek medical advice ASAP through your doctor or hospital.

Established Patients - Option For Receiving Warfarin Results by SMS

Undergoing warfarin therapy can greatly encroach on your life and freedom. However with Australia’s increasing use of mobile phones, QML Pathology has implemented an SMS results system to provide you with a convenient and efficient way to keep track of your dosage requirements. This system will automatically send your Warfarin dosage results via an SMS to your mobile phone, allowing you to monitor your dosage no matter where you are.
As with your usual treatment process, you will undergo a blood test in the morning to evaluate your dosage requirements. Instead of then receiving a phone call to inform you of your dosage level, the computer system at QML Pathology will automatically send you the result as an SMS message, once your required dosage level is entered into the computer system. This will make the process of receiving results far quicker.
Please Note: If you register for the SMS service you will not receive a phone call in addition to the SMS message.
Warfarin Charter & Dosage by SMS brochure

Useful Warfarin Publications

Click here for a list of publications developed to assist you with the management of your warfarin.