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Hepatitis C Main Forums => Post Hepatitis C Treatment => Topic started by: Francis60 on May 24, 2015, 09:29:35 pm

Title: Why different reference ranges in blood test?
Post by: Francis60 on May 24, 2015, 09:29:35 pm
i am having a holiday in Thailand after 6 months of riba/solvaldi,
as I was on a trial they will not release my results until after my 12 week EOT bloods (6 more weeks to go). I decided to get some blood work done here and it came back with normal ALT/ASt  They seem to use a different range here my ALt was 41 their reference range is 30-60 U/L. My tests in Australia for ALt were around 25 with a lower reference range do you know why there is a difference? Has it gone up or are they using a different method? I am concerned as I was informed that the ALT levels can be an indication of the virus coming back.

Thankyou all
Title: Re: Why different reference ranges in blood test?
Post by: Lynn K on May 24, 2015, 09:50:07 pm
Yes different labs do use different reference ranges so I guess it would be where your result falls on the scale
Title: Re: Why different reference ranges in blood test?
Post by: lporterrn on May 24, 2015, 10:08:08 pm
Lynn is right. Some labs do 0-35, some 5 to 35, and some like yours. I've seen some as high as 65. The numbers can't be compared - a 30 from a lab that uses one reference range is not the same as a 30 from another lab. Also, ALT is constantly rising and falling, so we can't even compare different results from the same lab - normal is all we need to know.
Title: Re: Why different reference ranges in blood test?
Post by: Francis60 on May 24, 2015, 10:18:17 pm
Thank you for your feedback, I guess the only words I wanted to hear were " normal is all I need to know". The post treatment wait is proving more of an anxious time than I anticipated even in Thailand.!
Title: Re: Why different reference ranges in blood test?
Post by: lporterrn on May 24, 2015, 10:39:05 pm
I suspect even the Dalai Lama would be asking this question.
Title: Re: Why different reference ranges in blood test?
Post by: Francis60 on May 25, 2015, 09:44:18 pm
Thanks for your advise, this forum has been life save for me.