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The Factor II Blood Test checks how well your blood can form clots by measuring prothrombin, also called Factor II. You may also hear it called a Factor II activity test, prothrombin activity test, or an F2 assay. You can book this test at participating labs on LabFinder and choose a time that fits your schedule.
This test, also called a Factor II activity test and prothrombin activity test, looks at the level or function of Factor II in your blood. Factor II helps your blood clot. If it is too low or not working well, you may bleed longer. If it is too high, it may be linked with a higher chance of clots.
Common reasons: easy bruising or frequent nosebleeds, unusual bleeding after dental work or surgery, a history of blood clots such as a leg clot or lung clot, checking for inherited clotting problems, or monitoring clotting issues when you also have liver or vitamin K problems. Your doctor may pair this with other clotting tests for a clearer picture.
You will check in and show your lab order and ID. A phlebotomist cleans your arm, places a small needle in a vein, and collects a blood sample. A bandage is placed after the draw. The visit usually takes about 15 to 30 minutes from arrival to finish. Most people can return to normal activities right after.
Yes, this is a quick, routine blood draw and is considered very safe. You might feel a quick pinch, notice a small bruise, or feel a little lightheaded for a moment afterward, but those effects usually fade quickly. Be sure to tell the staff if you take blood thinners, have a bleeding disorder, or if you have fainted during blood draws before. They will take extra care to keep you comfortable.
Medications: tell the lab about all medicines, especially blood thinners like warfarin or heparin, and any supplements. Food and drink: fasting is not usually needed unless your doctor ordered other labs. Activity: arrive well hydrated and avoid strenuous exercise right before your draw. Paperwork: bring your photo ID, insurance card if using insurance, and prior results if you have them. Always follow any special instructions from your doctor or the lab.
Unexplained bleeding or easy bruising, deep vein clots in the legs, lung clots, liver disease that affects clotting, vitamin K deficiency, and inherited Factor II deficiency. Results are interpreted in context. Your doctor will review your numbers along with your history and symptoms before advising next steps.
With LabFinder, you can compare locations, see time slots, and book online at participating labs. It is easy to search for a convenient location in your area or by city or ZIP. Cost and insurance: coverage varies by plan and provider, so check with your insurer or the lab before your visit. If you have questions about your symptoms or results, your doctor can guide you on what comes next.
Book on LabFinder: find a lab today on our lab finder and request a test doctor guided.
The information on this page and throughout the LabFinder website and mobile app is for general informational purposes only. It is not intended to serve as medical advice, diagnosis, or treatment. For personalized medical advice or specific health concerns, please consult your healthcare provider directly.
Booking a Factor II Blood Test (Prothrombin Test) is easy using LabFinder. Just choose your location and enter your insurance information to find the closest Factor II Blood Test (Prothrombin Test) near you.
To make a same-day appointment for a Factor II Blood Test (Prothrombin Test), just choose your location and your insurance information to find the closest Factor II Blood Test (Prothrombin Test) location near you. If there's availability for a same-day appointment at a nearby lab location, then you will be able to book it easily through LabFinder.
LabFinder allows you to easily schedule a Factor II Blood Test (Prothrombin Test). You can search by location and insurance to easily book a Factor II Blood Test (Prothrombin Test) near you.
LabFinder allows you to easily make an appointment for a Factor II Blood Test (Prothrombin Test) online. To make an appointment for a Factor II Blood Test (Prothrombin Test) online, just choose your location and your insurance information to find the closest Factor II Blood Test (Prothrombin Test) near you.
Yes, you can get a Factor II Blood Test (Prothrombin Test) without insurance. LabFinder allows you to search and select "Self-Pay" when booking a Factor II Blood Test (Prothrombin Test). While pricing for the test may not be immediately available, please check by calling the lab company directly for pricing.
