What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining what your antithrombin III levels mean for your clotting risk and overall health. These notes include personalized recommendations like lifestyle modifications, guidance on blood thinners if needed, or whether you should see a hematologist for further evaluation. You'll also get the standard lab report and can track your levels over time using our trends feature, which is especially helpful if you're managing a clotting disorder or monitoring treatment.

When will I get my results?

Most antithrombin III test results are available within 2-4 business days after your blood sample reaches the laboratory. You'll be notified as soon as your results are ready, and you can view them securely online along with your personalized doctor notes and interpretation.

Who should consider getting this test?

This test is important for people with a personal or family history of blood clots, recurrent miscarriages, or clotting disorders. It's also recommended if you've had unexplained clots at a young age, clots in unusual locations, or before major surgery or pregnancy when clotting risk needs assessment.

What symptoms indicate I may need this test?

Consider this test if you've experienced swelling, pain, or warmth in your legs that could indicate deep vein thrombosis, chest pain or shortness of breath from potential pulmonary embolism, or recurrent pregnancy losses. Other signs include having blood clots despite being on blood thinners or developing clots without obvious risk factors.

What is antithrombin III and why does it matter?

Antithrombin III is a natural protein in your blood that acts like a brake on your clotting system, preventing your blood from clotting too much. Think of it as your body's built-in blood thinner that keeps blood flowing smoothly. When levels are too low, your blood can clot too easily, leading to dangerous blood clots that can travel to your lungs, brain, or other organs.

What does low antithrombin III mean?

Low antithrombin III levels mean your blood has a higher tendency to clot, increasing your risk of developing dangerous blood clots in your veins or arteries. This can be inherited or caused by conditions like liver disease, kidney disease, or use of certain medications. Your doctor may recommend blood thinners or closer monitoring to prevent clotting complications.

How often should I retest my antithrombin III levels?

If you've been diagnosed with antithrombin III deficiency, your doctor will typically retest every 6-12 months to monitor your levels and treatment effectiveness. If you're on blood thinners, more frequent monitoring may be needed initially. For those with borderline results or temporary causes of low levels, retesting in 3-6 months after addressing underlying issues is common.