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Author Topic: Why different reference ranges in blood test?  (Read 11761 times)

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Offline Francis60

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  • Posts: 61
Why different reference ranges in blood test?
« 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

Offline Lynn K

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  • Posts: 4,546
  • Get tested, get treated, get cured, fight Hep c!
Re: Why different reference ranges in blood test?
« Reply #1 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
Genotype 1a
1978 contracted, 1990 Dx
1995 Intron A failed
2001 Interferon Riba null response
2003 Pegintron Riba trial med null response
2008 F4 Cirrhosis Bx
2014 12 week Sov/Oly relapse
10/14 fibroscan 27 PLT 96
2014 24 weeks Harvoni 15 weeks Riba
5/4/15 EOT not detected, ALT 21, AST 20
4 week post not detected, ALT 26, AST 28
12 week post NOT DETECTED (07/27/15)
ALT 29, AST 27 PLT 92
24 week post NOT DETECTED! (10/19/15)
44 weeks (3/11/16)  fibroscan 33, PLT 111, HCV NOT DETECTED!
I AM FREE!

Offline lporterrn

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  • LucindaPorterRN
    • LucindaPorterRN
Re: Why different reference ranges in blood test?
« Reply #2 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.
Lucinda Porter, RN
1988 Contracted HCV
1997 Interferon nonresponder
2003 PEG + ribavirin responder-relapser
2013 Cured (Harvoni + ribavirin clinical trial)
https://www.hepmag.com/blogger/lucindakporter

Offline Francis60

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  • Posts: 61
Re: Why different reference ranges in blood test?
« Reply #3 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.!

Offline lporterrn

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  • LucindaPorterRN
    • LucindaPorterRN
Re: Why different reference ranges in blood test?
« Reply #4 on: May 24, 2015, 10:39:05 pm »
I suspect even the Dalai Lama would be asking this question.
Lucinda Porter, RN
1988 Contracted HCV
1997 Interferon nonresponder
2003 PEG + ribavirin responder-relapser
2013 Cured (Harvoni + ribavirin clinical trial)
https://www.hepmag.com/blogger/lucindakporter

Offline Francis60

  • Member
  • Posts: 61
Re: Why different reference ranges in blood test?
« Reply #5 on: May 25, 2015, 09:44:18 pm »
Thanks for your advise, this forum has been life save for me.

 


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