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Heparin-Induced Thrombocytopenia

Medically reviewed by Last updated on May 6, 2024.

What is heparin-induced thrombocytopenia?

Heparin-induced thrombocytopenia (HIT) is a condition that causes a decrease of platelets in the blood. Platelets help the blood clot. HIT usually occurs after you are treated with heparin.

What increases my risk for HIT?

What are the signs and symptoms of HIT?

How is HIT diagnosed?

Tell your healthcare provider if you have been treated with heparin. Your provider will ask when you were treated with it and for how long. You may need any of the following tests:

How is HIT treated?

All heparin treatments will stop, including heparin flushes and catheters coated with heparin. You may need any of the following:

When should I contact my healthcare provider?

When should I seek immediate care or call 911?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.