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Because you haven't supposedly drunk or ate anything yet on that day.

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Q: Why is an early morning sample of urine used for test?
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Related questions

How do they test the etg test?

From a sample of urine.


Can you take two pregnancy test same morning with same urine sample and it is positive than the next morning take another and it be negative?

It would seem one of the test kits was faulty, but the most reliable way to do a test is with fresh urine. take another test or visit your GP. Good luck


What is spot urine sample?

preg test


Can you take a home pregnancy test before your period is due?

You can take some tests 7-10 days after ovulation, assuming you know the date you ovulate. Always take the test with the first urine sample in the morning. There is always a risk that you have taken the test too early and the result may not be accurate.


Can sabuxoen be detected in a urine sample?

Yes Suboxone can be detected in a urine sample. It can not however be detected in a standard drug test.


What is a mssu test?

Mid Stream Sample of Urine


Is it possible to get a positive result with first morning urine but get a negative result with urine after that?

Yes, the urine in the morning has high quanties of the hormones needed to produce a positive pregnancy test. If you are very early on in your pregnancy, it could show up negative later in the day, either wait a bit longer - a few more weeks, before taking another test, or even better go to the doctors and he will do a blood test! Yes, that is why the instructions tell you to test with the first urine you pass in the morning. The test is 99% accurate if positive with the first urine of the day.


What kind of drug test does hibbett sports use?

Urine sample test.


Do doctors test a sample of urine if it is deluted?

Yes, they do test your urine. They take it for analysis and they can see what diseases you may have, and more.


Can you use 3 day old urine for a lab test?

No . The urine should be tested immediately with a home test or the sample provided at the doctor's office or clinic. Sometimes you will be asked to bring a sample to the lab of the 1st urine you pass in the morning. But it should be that same day, not stored for 3 days.


Is a diluted urine sample the same as a positive test?

sometimes!


Is it early morning time is the best time to do the pregnancy test?

Ideally you should use your first urine of the morning because the pregnancy hormone is more concentrated, especially if its very early that you've suspected your pregnant... I only know because i asked the same thing a few weeks ago am now 11 weeks pregnant and had a negative using an evening time sample and a positive the morning after!