... different this week other than switching to working overnight. What could cause the reading to be out of range? Does it matter if you have the blood tested after you wake up or should you be awake for awhile first?
I also take Coumadin... many things affect the INR results. Eating spinach, or lettuce anything green thickens the blood and makes your INR lower. Also cranberry juice contains something that also affects your INR results. It doesn't matter when you have your blood tested AM, or PM its what you eat before you have the INR tested. Be careful because alot of food cause your blood to thicken as well as get too thin. I know this for a fact because I get tested every two weeks. Hope this helps.
I too am on Coumadin and will be on it for life, I already have been on it for years. Unfortunately people it does matter when you test it. You should weight for at least 12 hours after taking Coumadin to test it, it is alot more accurate that way according to my blood specialist that I have seen now for 10 years. Mine fluctuates all the time because they keep my INR very high, around 4.0 all the time because I throw blood clots even on Coumadin and sometimes Lovenox injections. You are going to need to watch your diet in order to keep your numbers accurate. Dark greens and salads not to frequently and cranberry juice should be out. Cranberry sauce from the can is usually alright but not in excess, like more than one can a week. You should also test your PT/INR around the same time each time if you can, it is not necessary to set an alarm or timer but just try to do it around the same time as much as possible.
You should definately have a Hematologist if you are going to be on Coumadin for any length of time if you don't already have one. I hope this has helped you out some and those out there on Coumadin or other blood thinners such as Lovenox, Heparin and any other injectables or pills. Good luck Coumadin is very tricky sometimes. Feel free to write me anytime if you have any questions, I am not a pro for sure but very well experienced in Coumadin and other blood thinners. I will add you as a friend in case you need to ask something in private. Good luck hope it works out for you.
- Coumadin Information for Consumers
- Coumadin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Coumadin (detailed)
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