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Author Topic: What does Below limit of quantitation mean?  (Read 6071 times)

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Offline strongtower

  • Member
  • Posts: 15
    • OilnWine Design
What does Below limit of quantitation mean?
« on: August 09, 2017, 03:19:36 pm »
Hi Everyone,

I just got my latest lab results and my viral load shows <15. What does that mean? That it is below 15?

Here's a screenshot of my test results.



TIA
~Maddy

Diagnosed with hepC (genotype 1a) in 2003
8/3/04 viral load: 10,700,000
12/9/04 viral load: 4,030,000
3/9/05 viral load: 11,000,000
2/3/06 viral load: 6,950,000
8/9/12 viral load: 1,715,882
3/28/17 viral load: 3,921,231

8/18/17 AST: 36 ALT: 20

*Started Harvoni June 22, 2017
5/17/17 viral load: 851,555
7/6/17 viral load: 548
7/20/17 viral load: 76
8/3/17 viral load: <15
8/24/17 viral load: NOT DETECTED

Offline gnatcatcher

  • Member
  • Posts: 1,372
Re: What does Below limit of quantitation mean?
« Reply #1 on: August 09, 2017, 03:29:27 pm »
It means that a very small amount (less than 15 international units per milliliter of blood) of hep C virus was detected in your blood sample, but the test is incapable of counting an actual number if it is less than 15, so all it can tell you is that you are still positive for hep C but you have very little. Viral load tests also state their conclusions as a logarithm (<1.176 in this case) for the convenience of doctors.

"Less than 15" is much lower than before you started treatment, so your situation is much improved. The test that determines if you are rid of hep C is the one twelve weeks after the end of treatment, so it does not matter if virus is still detected earlier than that.
« Last Edit: August 09, 2017, 05:00:36 pm by gnatcatcher »
9/29/71 transfusions
HCV genotype 1a
7/09/15-9/30/15 Harvoni

Before treatment:
Viral Load 9,490,582
FibroScan 19.5 kPa [F4]
ALT 262
AST 217
ALP 183

Most recent:
VL still UNDETECTED (SVR 102)
FibroScan 7.6 kPa [F1-2]
ALT 15
AST 20
ALP 85

Offline strongtower

  • Member
  • Posts: 15
    • OilnWine Design
Re: What does Below limit of quantitation mean?
« Reply #2 on: August 09, 2017, 04:39:31 pm »
Thank you gnatcatcher!
~Maddy

Diagnosed with hepC (genotype 1a) in 2003
8/3/04 viral load: 10,700,000
12/9/04 viral load: 4,030,000
3/9/05 viral load: 11,000,000
2/3/06 viral load: 6,950,000
8/9/12 viral load: 1,715,882
3/28/17 viral load: 3,921,231

8/18/17 AST: 36 ALT: 20

*Started Harvoni June 22, 2017
5/17/17 viral load: 851,555
7/6/17 viral load: 548
7/20/17 viral load: 76
8/3/17 viral load: <15
8/24/17 viral load: NOT DETECTED

 


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