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F2 Prothrombin Variant: How It Relates to Clotting

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All NiaHealth tests are processed in Canadian-certified labs, which are highly trusted by the medical community for their accuracy and reliability. Blood and urine samples are collected by licensed medical professionals and processed using state-of-the-art equipment. NiaHealth is SOC2 Type 2 certified.

F2 helps control how blood clots form. Certain genetic variants can raise the risk of blood clots, especially when combined with estrogen-containing hormonal medications. Medication(s) analyzed: Ethinyl estradiol

Available as an add-on

F2 is part of our Pharmacogenetic Test add-on, starting from $799.

Nurse Practitioner reviewed

Canadian-certified labs

SOC2 Type 2 certified

Why it matters

Reference ranges

Tanya ter Keurs
Clinically reviewed by  
Tanya ter Keurs
, NP · Last reviewed  
2026-08-05

This information is educational and does not replace medical advice, diagnosis, or treatment. Your results should be interpreted with a qualified healthcare professional in the context of your health history.