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Why does urine have to be diluted so heavily for a Jaffe's reaction test?
Diluting urine for a Jaffe's reaction test helps to minimize interference from other substances in urine that may give false-positive or false-negative results. The dilution helps to ensure that the color change observed in the reaction is due specifically to the creatinine concentration in the sample.
If you mix water with urine what will be the results of a urine test?
Mixing water with urine will dilute the urine sample, potentially affecting the accuracy of the urine test results. The concentration of substances in the urine, such as drugs or metabolites, may be lower than expected, leading to false-negative results. Dilution of the urine sample is generally considered an attempt to cheat or manipulate the test.
If water is mixed in urine of pregnant woman it give positive result or not?
Mixing water with urine from a pregnant woman will not affect the accuracy of a pregnancy test result. The presence of hCG hormone in the urine is what determines a positive pregnancy test result, not the addition of water.
Why does resorcinol give a false positive with the Duquenois Levine test?
Resorcinol can interfere with the Duquenois-Levine test by producing a similar color change as THC when exposed to the test reagents. This can lead to a false positive result for THC in the presence of resorcinol.
Can you get a negative urine pregnancy test even if a blood test comes back positive?
I have just this minute come back from the doctor. My urine test was negative but my blood test was positive. I have been told that my HCG levels are extremely low therefore producing a negative urine test. I was also told that I am either 1-2 weeks pregnant or that I am in the process of a miscarraige. I had an internal exam and my cervix is closed which is a good sign! I would suggest to you if you had the same thing happen to wait a few days and go back and have both tests done again to see where your levels are at. Either way, keep a close eye on it. Hope this helps.
What can cause a false positive for a marijuana drug test if you have not used pot?
Using someone else's urine, who has used pot, for the drug test would give a false positive.
Urin test can st john wort give a false positive for benzos?
Yes, St. John Wort can give a false positive for benzos on a urine test. This is due to the similarities in ingredients within St. John Wort and benzos.
Does progesterone suppositories give you false results on a urine pregnancy test?
yes it affect bu afulse positive result
Does Subutex cause a false positive in a urine test for heroin?
yes
Can hepatitis b cause a false positive urine test for cocaine?
No.
Can poppy seeds cause false positive for synephrine in urine test?
no
Can Effexor cause a false positive for marijuana in a urine test?
Yes
If you get a false positive on a urine test will a hair follicle show positive also?
A hair test will show positive, if you have been using.
Which herbal supplements can cause a false positive on a urine drug test -?
Valerian Root can test positive as benzodiazepines. Ephedra can test positive as an amphetamine.
Can xynex case a false positive on a urine drug test?
well i believe it will.
What food products can cause false positive alcohol urine test?
raisins
Can mt dew cause false positive for cocaine in urine test?
Yes.
