What is Cirrhosis

Cirrhosis is a consequence of chronic liver disease characterized by replacement of liver tissue by fibrotic scar tissue as well as regenerative nodules, leading to progressive los...

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Advice:
How do I calculate INR in MELD?
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I have my sister's lab results, and I see where everthing needed to calculate MELD is located except for INR. From what I have read, I believe it is several things (clotting factor, hematocrit, etc...) but am unsure how to calculate THIS factor.

Does anybody know how to interpret the lab results to calculate this?

Help is greatly appreciated!

Merry
Posted on 10/18/09, 03:10 pm
8 Replies Add Your Advice
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Advice:
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Reply #1 - 10/18/09  7:49pm
" I go to the UNOS website it has a tab for calculations for the MELD score. Hope that helps.


Sharon "
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Reply #2 - 10/20/09  3:59am
" If you have a reference to Prothrombin/INR time in, number of seconds about 10 +or- that is what you use for the MELD. You cannot calculate it yourself.
Jeff "
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Reply #3 - 10/20/09  6:21am
" Is there a name for the test to get all the components that make up a meld score or are there 3 different tests? For myself, I was diagnosed in 4/09 and went back months later to review the results and was suprised that I actually had a meld score.. Can I request a specific blood test ?? I have phlebotomies weekly so its easy to get a blood test done..
Thanks
Randy "
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Reply #4 - 10/20/09  7:26am
" INR is not often included in a normal liver panel for some reason.
Prothrombin time tends not to be used these days as the result can be variable depending on what type of analytical system it is performed. This is due to the differences between different batches of manufacturer's tissue factor used in the reagent to perform the test. The INR was devised to standardize the results.

Prothrombin time is usually between 12 and 15 seconds.
The INR reference range is 0.8 to 1.2

The MELD calculator I use from UNOS only asks for INR. If the INR test was not done I use a value of 1.0 as a guesstimate.

http://www.unos.org/resources/Meld...

Craig "
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Reply #5 - 10/20/09  12:45pm
" In answer to your question, Randy, The test is called an Hepatic Function test and the INR test needs to be requested also.
Jeff "
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Reply #6 - 10/20/09  6:35pm
" Thanks Jeff.. Thats what I needed... "
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Reply #7 - 10/20/09  7:59pm
" Thanks to everybody for your quck responses and caring. I not only found the answer to my question, but met some really cool people in the process.

Thanks Again! "
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Reply #8 - 10/21/09  3:02am
" Randy, you are welcome, Merry you are welcome! Everybody`s welcome, come on down we`ll have a hoedown. Yee haw!
(It`s late).........Jeff "

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