INR and Temperature

[jorsarge]

Hi,

Can someone let me know can your body tempreture affect your INR.

My target range is 3.0. 2 weeks ago I had my blood checked anf my INR was 1.8 my dosage at the time was 57mg a week after the test they upped my dosage to 57mg per week.

I had not missed any doses and my diet was the same. the only difference was the weather was absolutely freezing on the morning of the test as I took my motorbike to the hospital for the test.

On Tuesday I was back for another blood test my INR was 2.7 and they have kept me on 59mg a week only difference was I got the train and walked to the hospital from the railway station so I was a lot warmer than the week before.

so can anyone let me know please does tempreture affect you INR.


Happy new year and thanks


J

 

[KristyW]

Nope...those are pretty much normal variations.

I took 5mg/day for over 4 years. In that time my INR was anywhere from 2.3 to 4.5. I eat a very consistent diet, get the same amount of exercise, and don't change any of my vitamins or meds. Just one of the quirks of anticoagulation therapy.

3.0 isn't a range...it's a target. Is your target range 2.5-3.5?

 

[dick0236]

Hi,

Can someone let me know can your body tempreture affect your INR.


so can anyone let me know please does tempreture affect you INR.

Depends on who you ask. I have noticed, over the past few years, that my need for warfarin declines a little in the winter (my INR goes up). I think it is more likely due to decreased activity and exercise rather than temperature....but quite frankly I don't know.

 

[Ross]

I'd say it's more of a blip then anything. Temperature doesn't seem to have a whole lot of effect unless it's ungodly hot and your dehydrated.

 

[EireCara]

Iv been wondering the same thing. I had my blood checked 2 days ago and it came back reading 1.3....eeeeeeeeeeeeeeeeekkkkkkkk. I was taking 5mg daily and dont think Iv ever been that low. The doctor told me to take 8mg last night and 6mg each day and test again in a week. He seemed to think I must have missed a dose but Im positive I didnt as I have a pill box.

 

[Ross]

One thing I have noticed, during winter our food supply comes from different areas of the world/country. INR does seem to change with location, so it may be the different soils and such that our food sources are grown in or what they eat from.

 

[jorsarge]

thanks Kirsty you are right the range is 2.5 to 3.0.

J

 

[jorsarge]

I think Ross might be on to something about where the food we eat is sourced. The planet is a small place now and soils in one place can vary wildly in their use of pesticides and so on. pardon the pun but certainly food for thought !

J

 

[olefin]

One thing I have noticed, during winter our food supply comes from different areas of the world/country.

Not ours, at least for the meals we eat at home. We never buy vegetables or fresh fruit at the grocery that's not a product of the USA.

 

[Ross]

Not ours, at least for the meals we eat at home. We never buy vegetables or fresh fruit at the grocery that's not a product of the USA.

That's why it's slash Country. Even inside our own borders, nutrient values differ from area to area.

It seems different soils provide different nutrients, then the grazing beasts get different diets too.

 

[Cris N]

ptinr.com published this article about summer heat & INR: http://www.ptinr.com/data/templates/article.aspx?a=265&z=1

I looked at my past 3 years readings and found that I had to reduce my warfarin dosage about 5-10% during the summer. Spent a lot of time outside since my DH & I golfed a lot - including all day almost every Sat & Sun.