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Hep C Discussion Forum -> On Treatment -> 4 week blood draw result whats the difference between a negative result and undetected?
Post Info TOPIC: 4 week blood draw result whats the difference between a negative result and undetected?
Phil G


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RE: 4 week blood draw result whats the difference between a negative result and undetected?
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I had one 'negative' when the lab ran a Qualitative instead of a Quantitative test. My dr interpreted it as undetected. I got in the habit of bringing in a sheet listing their HCV tests and highlighted which one to run. 



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Geno 1A, VL 1.9 mm, SOT 12/2/11 - Pegintron/Ribavirin/Victrelis, UND since wk 8, EOT 6/15/12 (28 wks), SVR 11/30/12
lucy


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thanks for your post. In my VL result, show Negative.   I think I need ask the same question. April 9, when I go to see my RA, I will ask her.
 
mallani wrote:

Hi Dunfind,

Negative is a strange term to use but it should mean Undetected. Quest have 2 VL tests. The PCR test has a LLOQ of 15 and the Heptimax test has a LLOQ of 5. It's a bit odd that they are using different tests.

Can you ask them why? Cheers.

 



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 1b, start triple treatment(incivek) on Feb 5, 2013.  UND@ 4,12,24 wks. EOT Aug 6, 2013
mallani


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Hi Dunfind,

Negative is a strange term to use but it should mean Undetected. Quest have 2 VL tests. The PCR test has a LLOQ of 15 and the Heptimax test has a LLOQ of 5. It's a bit odd that they are using different tests.

Can you ask them why? Cheers.



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Geno 1b, IL28B CT,  x3 prior relapser,  ex-cirrhotic, 75 yo, did 48 weeks with Victrelis/Peg./Riba.  VL 1.28m at start, UNDET. at 8 ,12 ,16 ,24 ,30  and 48 weeks.  EOT 15 Feb 2013 , UNDET. at EOT + 28 weeks. SVR!  Still Undet. at EOT +5 years

Malcolm
Biggyb


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I think it's the same, good luck.



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58 yo..Relapsed in 99 and again in 2004. Started triple therapy with Victrelis July 22,2012.  genotype 1a. week 8,12,16,24 VL Undetectable..E.O.T -- 6-22-2013,,,EOT + 24., UND. 

SVR !!!

 

~Bob~
dunkind123


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I recieved my results and my viral load was negative! what is the difference between a negative result and undetected? My Uric acid was high and my nurse told me to drink cherry juice..I had my lab work done at quest, and the nurse said the next blood draw for my 8th week will be a different test for viral load..Im thinking a stricter test maybe?



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