While you're taking warfarin, you need regular blood tests to see if your dose of warfarin needs to be adjusted. These blood tests, which are called protime (PT) tests or International Normalized Ratio (INR) tests, or PT/INR for short, measure how fast your blood clots. If your PT/INR test result is too high, your risk of bleeding increases; if it's too low, your risk of getting a blood clot increases. Your doctor and other healthcare providers will decide what range of numbers are best for you. Your dose of warfarin will be adjusted from time to time to keep your PT/INR within that range.
- Q Is it safe for older people like my grandmother to take warfarin?
- Q Can my father drink champagne at my wedding if he's taking warfarin?
- Q Now that I’m taking warfarin, how much do I have to change my lifestyle?
- Q If my mother is on warfarin, how can she know which foods have vitamin K?
- Q Is it safe for me to breastfeed while taking warfarin?
- Q Should my husband avoid playing sports now that he's taking warfarin?