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The color of urine is determined on how concentrated the urine is. It's from all of the toxins being excreted. In the morning it's a fasting urine and you haven't drank fluids all night. So it's concentrated and dark yellow. During the day, you drink and dilute the urine so there more water in the urine, less concentrated and lighter in color
What else can I help you with?
What is best time of day for proper urine sample?
The best time of day for a proper urine sample is first thing in the morning. This is because the urine is more concentrated then.
Is the time of day a factor when collecting a urine sample?
It can be. The first void of the morning is usually the most concentrated, which helps when trying to do pregnancy tests or microalbumin-creatinine ratios.
Can your urine be dilute first thing in the morning?
Yes, urine can appear more diluted first thing in the morning due to higher water intake overnight and potentially longer time between urinations. It is normal for urine to be more concentrated later in the day.
Will being dehydrated make drug levels higher in a urine drug test?
Yes, especially if it's the first time in the day you urinate it is very concentrated.
Is day time preferable or all the day to do pregnancy test at home?
Always test first thing with your first urine of the day as this is the strongest and will have most accurate results.
When can confirm pregnancy in a urine test?
You can typically confirm pregnancy with a urine test as early as 7-10 days after conception, which is about one week after a missed period. It is recommended to take the test first thing in the morning when the hormone levels are most concentrated in the urine.
Why there is a limit of 500 ml of urine production of kidney?
Kidney can form concentrated or dilute urine. But it has got it's own limitations for the same. So it can produce 22 liters/ day of urine to it's maximum capacity and minimum 500 ml/ day of urine is required to excrete to solutes including nitrogenous waste products. That is the capacity of kidney to concentrate urine.
Why would urine passed in the morning be a darker colour than urine passed in the rest of the day?
Because it's been in the bladder all night (probably for eight hours) and is more concentrated. Urine passed through the rest of the day is rarely in the bladder for more than an hour at a time.
For a Urinalysis does it have to be the first collection in the morning?
While a first-morning urine sample is often preferred for a urinalysis because it is more concentrated, it is not always necessary. Urine samples collected at different times of the day can still provide valuable information for healthcare providers. Just make sure to follow any specific instructions provided by your healthcare provider.
Should I wait until all the coffee I drank today is out of my system before I take a pregnancy test?
The coffee should make no difference. In the directions of most pregnancy test it advises to use a morning specimen. This means as soon as you wake up in the morning, the very first time you urinate that day, do the test. That is when the urine will be the most concentrated with hormones.
Can a home pregnetice test show possitve and be wrong?
False positives are very rare but possible. Take another test the following day with your first pee of the day (it is the most concentrated) to make sure.
Is a drop of blood in urine consider as a first day of your period?
No, blood in your urine has absolutely nothing to do with menstruation. Urine comes from your bladder via your urethra, whereas menstrual flow comes from your uterus via your vagina - two completely different bodily parts. The first day of menstruation is the first day of bleeding from your vagina. If you have blood in your urine it's a sign of a urinary tract infection so you should talk to your doctor.
