Transfusions and reducing the risk of blood clots


Some patients will require blood transfusions as part of their hospital stay – as part of or following a major surgical operation or their ongoing medical treatment.

Blood and blood components are supplied by the Australian Red Cross Blood Service (ARCBS). The ARCBS has strict screening protocols for donors and most of our blood is obtained in Australia where donation is from unpaid volunteers.

Refusing a transfusion

If you are a Jehovah’s Witness or have other objections to blood transfusions, it is extremely important that you discuss this with your doctor and that your wishes are recorded in your medical record. It is important that your wish not to have a blood transfusion is clearly written on the hospital consent form before you sign this document.

For more information read giving consent or speak with our staff.

Reducing the risk of blood clots

Medication, surgery or being confined to bed can increase your risk of developing a blood clot in your legs or lungs. We will assess your risk of developing a blood clot, but please feel free to ask your nurse or doctor about your level of risk.

To reduce the risk of developing a clot:

  • take any tablets or injections that your doctor prescribes
  • keep your compression stockings on avoid sitting or lying in bed for long periods if possible
  • walk as often as the staff looking after you recommend
  • ask what to do to avoid the risk of a blood clot when you go home.

More information:

Related links

We reduce the risks of a hospital stay with hand hygiene, preventing falls and blood clots, and medication safety. Read about keeping you safe in hospital.