Interesting that recommendation for adjustment of high INR (< 6.0 but > 0.7 above target ) is 10-25% reduction in rat poison dosage. My cardio works on the 'hold' view on correction for even 0.1 above target range, which this reference uses for INR > 6.
I like the limited reduction approach due to the long half-life, even when INR is upto 6.
It seems the practitioners view (that I regularly see) of risk/reward push desire for low INR. We've likely all seen the figure the pellicle regularly circulates, and I find it comforting to see literature indicating INR even to 5 is not especially dangerous. Given inaccuracy in testing, I see more and more risk of being below 2.5 (which is center of my prescribed target range). I'll provide a challenge to my care staff with my next draw...