Is First Morning Urine The Best Sample?

What is considered first urine of the day?

The first morning urine is the urine you void when you get up for the day.

If you get up during the night, it is not necessary to catch that urine.

You can wait until you get up for the day.

For women who work night shift, your first morning urine will be the urine you void after you slept during the day..

What happens to urine when refrigerated?

Refrigeration can result in the precipitation of urates or phosphates, which may obscure other pathologic constituents in the microscopic examination of the urine sediment. According to NCCLS, If the urine is also to be cultured, it should be refrigerated during transit and held refrigerated until cultured.

What color should your urine be first thing in the morning?

Morning is when your urine will be most concentrated. So, if your morning urine is a pale, straw color, you’re probably well hydrated and healthy. At bedtime, it should look as clear as water or at least pale yellow. If it doesn’t, you may need to boost your fluid intake.

What color should your urine be if you are properly hydrated?

When you’re healthy and hydrated, your urine should fall somewhere between colorless and the color of light straw and honey. When you don’t consume enough fluids, your urine becomes more concentrated and turns a darker yellow or amber color.

Should urine test be done in the morning?

Generally, it doesn’t matter what time of day you collect a urine sample, but there are occasional exceptions. Your doctor may, for example, request a first morning sample because the urine is more concentrated and therefore it is more likely to show up any abnormalities.

What are normal results for a 24 hour urine test?

Normal Results The normal range for 24-hour urine volume is 800 to 2,000 milliliters per day (with a normal fluid intake of about 2 liters per day). The examples above are common measurements for results of these tests. Normal value ranges may vary slightly among different laboratories.

How long can urine sit before being tested?

If you can’t hand your urine sample in within 1 hour, you should put the container in a sealed plastic bag then store it in the fridge at around 4C. Do not keep it for longer than 24 hours. The bacteria in the urine sample can multiply if it is not kept in a fridge. If this happens, it could affect the test results.

What happens to urine if left out?

Any bacteria or cells present in a urine sample kept at room-temperature for more than one hour will continue to use glucose (sugar) in the urine. This may result in a falsely decreased urine glucose measurement. Also, bacteria produce ammonia which makes the urine more alkaline (increases pH).

Why is first morning urine specimen preferable?

The first urine voided in the morning is preferred because it has a more uniform volume and concentration and a lower pH, which helps preserve the formed elements. If it is not possible to obtain a first morning sample, the time of the sample should be noted on the test request form and in the patient’s records.

What is the best time of day to take a urine sample?

Within two hours is best. If possible, collect samples in the morning Mon-Friday so the sample can be taken to the surgery before 11am.

How long is Pee good for a pregnancy test?

Specimens may be collected at any time of the day. First morning urine samples will normally contain the highest levels of hCG. C. If not tested immediately, urine may be stored at room temperature (59-86oF or 15-30o C) or 8 hours refrigerated at 36─46oF (2─8oC) for up to 3 days.

Is yellow urine a sign of pregnancy?

Anecdotal evidence suggests that bright-yellow urine may be an early symptom of pregnancy.

What is bright yellow urine a sign of?

Bright yellow urine is a sign of excess B-vitamins in the body, including B-2 and B-12, although this condition is harmless. Taking B-vitamin supplements can lead to urine of this color. The yellow color darkens as the concentration of the urine increases. Concentration refers the proportion of waste products to water.

What should not be found in urine?

The following are not normally found in urine:Hemoglobin.Nitrites.Red blood cells.White blood cells.

Can you drink water before urine test?

Certain medications and kidney problems can also cause urine dilution. To prevent urine dilution, limit water and diuretic intake before administering the test. You can also collect urine in the early morning or before work.