i am on warfrin and my pi today was 1.23 from the last test 1.82 and previously 3.23What can cause the blood levels to change.  I am also anemic on Chela-fer one a day. I did not take the tablet this morning at 6.45 am instead took it after the PI blood test.  Can this cause the bllod to thicken. Very worried
Hi, dear. I have gone through your question. I can understand your concern.  Warfarin is used for thinning of blood.  You should maintain your INR between 2 and 3. Change in INR occurs due to metabolic change in warfarin level. Your Chat Doctor.  You should regularly check your PT & INR and set the dosage accordingly. Hope I have answered your question, if you have doubt then you can contact me atbit.ly/