No, blueberries shouldn't have an effect on these tests.
Apparently it is blueberries you it to help you test positive, but that is only what Ehow says
Any test can be a false negative.
Urine with negative or no sugar is a good, normal finding.
Yes, a positive testing urine test will show faster than a negative urine testing.- Personal experience (I have had many urine tests) use "sure jell" and you will pass everytime!!!!! look it up on google.
yes.
not very likely
Hello there. Yes you may very well be pregnant. A pregnancy test will only turn positive once HCG has been found in your urine. BUT there needs to be ENOUGH HCG in your urine to make a positive test result. Depending on the pregnancy test, they usually look for 5MIU - 50MIU. If you had 49MIU of HCG in your urine and did a test that looks for 50MIU it would be negative. The same thing applies to the Labatory urine pregnancy test. When they did the test you probably didn't have enough HCG in your urine to give you a positive. You need to have a blood test. Urine tests are NOT reliable and give negative results when women are indeed pregnant. See your doctor for a Quantitative Beta HCG pregnancy test. Good luck.
No.
A urine test
Yes you can be. With my son (my first) all urine tests came back negative. The one at the doctors too. I asked them to give me a blood test and that came back positive. Early in pregnancy your breast are tender and you gain a little weight.
No....urine. I have worked for a Marriott franchise for almost ten years and its always been a urine test. And yes, they test quarterly.
its a urine test