Is there any way for this test to have a false negative?
889869
It's possible but highly unlikely. Take two back to back if you are unsure.
889870
I think so. There's a control line and test line the control line is dark red so you want your test line to match it not to be a faint but as dark as the control line.
889871
Not many tests exist that are 100% accurate under any circumstance and this is no exception. Though through personal experience they have been accurate both when I thought I would be clean and also when I knew I wasnt. And like many others here. Take 2 back to back and compare results. Dont worry about the shade of the line, that doesnt matter...what matters is if its there or not. And this tests states that it tests up to 50...not 75 like another reponder.
889872
I would make sure I test negative at least three times in a row , three differnt days if you are concerned. Early in the morning is the best time
889873
I'm not totally sure, however I used these ( all of them ) over a two week span, while comparing them to the walgreens kit I bought, as well as the more strict 15 ng/ML test you can get here on Amazon as well, and all of them came back clean. I went and took my test at the lab and came back clean as well. Goodluck, and don't stress as much as I did- it was uneeded.
889874
I believe yes, there is. These are not a super high quality test so there is the possibility of false results. There are 10 in the box though, so you can have the tester take 2 at a time.
889875
This test is only a 100% effective at concentrations at or above 75ug and 75% effective at concentrations of 50ug. This means that you could test negative and still have 50ug of drug in your system. Based on my experience if I've smoked within the last 48 hours the test will flag me as negative. As for the test line, it will be faint but visible. The shade of it's color has NOTHING to do with how close you are or are not to being clean; it is binary, either you are or you aren't negative, there are no shades of grey here.
167770
It does show the previous result in green; but apparently it also rounds off readings to previously-measured values rather than admitting small variations. To test this I weighed myself, then weighed myself with a cup of water, then weighted myself with half a cup of water over and over. Rather than giving a result somewhere between the first two measurements it would always give one or other of the first measurements. Then I weighed my wife, and then I weighed myself with half a cup of water again, and I got a different result.
1001103
To my experience, not at all. I bought a OneTouch Ultra 2 which is close to Accu-Chek Aviva Plus but slightly lower at each test. My TrueResult has way lower readings compared to the other two. I even bought additional test strips to test TrueResult to see if it was wrong with my previous test strips, still not good either, just very inaccurate.
1693384
It is just a yes or no. If the test is positive, you should see your veterinarian.Hope this helps. :)
1881617
My best guess is NO. If it's not the same number it's probably not the same strength reagent. If you have the brochure that came with the kit, it explains that there are different concentrations of reagents and different strengths will give inaccurate results.
1394517
It depends on how long the urine had been in the brief. If it was a clean brief and this was the first urine specimen in the brief and it was VERY soon squeezed out, there is no reason that a strong positive should not be valid, in my professional opinion. On the other hand, urine from a male can be collected in a condom you know.
1950705
Yes I suggest you try a side by side test to make sure. You can contact their website with questions. I believe they make a meter also.
891535
There is a certain amount of liability I would take by answering if your machine is accurate. I would suggest you do a charcoal test next to it to compare readings. Your first test that come back over 4.0 always makes you second guess any machine.
1942473
Not sure. Pretty sure I had some faulty test kits. No sure if it works it not. I read the reviews on my test kits and I'm pretty sure it was those that were bad.
1455396
You mean after you test and it's pos. Or negative can you then send stick to be analyzed. Probably not enough urine absorbed to retest same urine or anyway to verify it was you who took the test to show someone that look I was or is positive or negative .. But in 98% of the tests were good.. A couple out of a 100 I have used something about urine above the line or mishap didn't register correctly tests are good..
1969671
I have not gotten a positive yet but it should be 2 vertical lines if positive. One line in the test area if a negative. This product is just like the 2 line tests from walmart, walgreens, cvs etc. It is NOT a + positive test.
1737820
I had a similar thing happen and I am definitely pregnant. I wouldn't trust these digital tests. Just get a regular First Response and see what comes up. I took 6 tests and all of them stated "pregnant" except for the one digital. Just buy some other brand and see what the result is.
1455397
I don't think so, I bought one from Walmart that came with a box you could send off. These do not. It's just the test strips
1514983
Sounds like you may have a defective test. You should definitely get 2 full lines for a positive result. Good luck!
2011065
Sorry but I am not a doctor and therefore would not feel confident in providing you a accurate answer. I can tell you though that the test did work exactly how it promised to. So take that for what it's worth. Hope that helps.
1943682
The directions are on test. 2 lines means negative. One line is positive. The second line may be very light but still negative.
188462
Perhaps test it on a similar piece of cloth to see the results. even an untreated cloth would yield results to compare.