After the initial flushed samples, all urine must be preserved, stored, and kept cool. This involves putting it on ice or putting it in the fridge for the next 24 hours. The longer you can wait before storing your sample, the better because these things can become toxic if they sit around too long. Most labs will tell you how long to keep your sample after testing it, but just in case you want to go an extra day or two, that's fine too.
Once you've collected your 24 hour sample, put as much time as you can between then and now while still being sure to freeze it all before going over the limit of 40 hours. That way, if your lab runs out of room on your sample, they'll be able to test another one instead!
Most people are able to keep their samples for up to 40 hours after collection. If you're concerned about keeping it for longer than that, try not to store it above 80 degrees F or below 20 degrees F.
Also remember that the more dilute your urine is when you start out, the longer it will last. So if you can avoid starting out so diluted that you need to flush first, do so!
Finally, don't drink any water with your sample.
To complete the collecting process, urinate again at the same time, 24 hours after the commencement time. It is fine if you are unable to urinate at this time. However, be sure to record the start time of collection.
A second sample can be requested if the first one was not completely collected. The second sample can be any amount; however, it should be equal to or greater than 0.5 grams. If the second sample is not collected then a third sample can be requested up to seven days later. Each additional sample increases the chance of detecting diseases or disorders that may only appear in certain individuals. For example, hemophilia would not be detected in a sample taken as part of a routine health check.
A fourth sample can be requested eight days after the third sample. So for example, if your third sample was not collected within three days of the first sample then a fourth sample could be requested eight days after the first sample.
A fifth sample can be requested nine days after the fourth sample. So for example, if your fourth sample was not collected within three days of the first sample then a fifth sample could be requested nine days after the first sample.
A sixth sample can be requested ten days after the fifth sample.
The 24-hour collecting begins at this moment. This second sample is called the "void." The laboratory will use both samples to make certain that no one patient has too much sodium or acid in their body at one time.
There are two main types of tests that may be done from your urine sample: microscopy and chemistry. Microscopic tests look at things such as bacteria, parasites, and cancer cells under the microscope. Chemistry tests measure the amount of chemicals in your blood or urine that indicate how you're doing physiologically. These include glucose, protein, and pH levels. A lab technician will be able to tell you more about these tests if you ask him or her.
Your doctor may request only one type of test, such as a chemistry panel, from your urine sample. If so, they will look at levels of acids, bases, proteins, and other substances in your urine to determine whether you have a problem that needs treating. For example, high levels of protein in your urine may mean that you have diabetes mellitus or kidney disease. Low levels of potassium in your blood may require treatment with medications or dietary changes. Your doctor may also do several tests from one sample of urine.
A urine sample should be maintained in the refrigerator at 4 degrees Celsius (39 degrees Fahrenheit) for no more than two weeks. Place the urine bottle in a sealed plastic bag first. This will help to prevent the sample from becoming contaminated by bacteria that may grow in the bottle.
The best time to provide a urine sample is between 7AM and 10AM after waking up without eating or drinking anything other than water for 12 hours. Do not force yourself to go when you do not feel well; this can lead to problems providing a valid sample.
Urine tests can detect many diseases early before they show up in blood samples. This is especially important for monitoring conditions such as diabetes and kidney disease. Your doctor may ask you to provide several consecutive urine samples over a period of time to measure levels of certain substances in your blood. For example, doctors may ask you to provide morning urine samples to check for albumin, which is a protein found in healthy people but often increases in concentration in those with diabetic nephropathy-a condition in which damage to the kidneys causes increased filtering of blood cells resulting in high concentrations of albumin in the urine.
Urine test results can also tell you about your body's response to medications.
Keeping a urine sample until it is time to submit it If you can't get your urine sample in within an hour, put it in the fridge at 4 degrees Celsius (39 degrees Fahrenheit) for no more than 24 hours. The germs in the urine sample might proliferate if it is not maintained in the refrigerator.
The next day, take the bottle out of the fridge and see how much urine has been produced since you kept it there. You should be able to collect at least 1 milliliter (1/4 teaspoon) of urine per ounce of body weight daily. So, if you weigh 100 pounds, you should collect 100/4 or 25 teaspoons of urine each day.
Urine samples are usually stable for three days when stored at room temperature. However, if you work with chemicals or materials that contain sodium, such as soap makers or gardeners, then your sample may become contaminated. In this case, discard the sample immediately by throwing it away rather than submitting it for testing.
A urine sample can be used to determine drug use, disease markers, and other factors related to health and safety. Because of this important role, it is vital that you provide a valid sample on request. Lab employees who come into contact with urine samples may be exposed to the following hazards: infectious diseases, drugs, and toxic substances. Employees should take all necessary precautions to prevent contracting these exposures.
If you can't get your urine sample in within an hour, put it in the fridge at 4 degrees Celsius (39 degrees Fahrenheit) for no more than 24 hours. If the urine sample is not refrigerated, germs might proliferate.
Once you have submitted your sample, follow-up with the laboratory as soon as possible to find out its outcome. Most labs will tell you how long the results will take after receiving the sample.
Some diseases affect the way your body processes proteins and other substances found in urine. For example, if you have diabetes, your body may not be able to break down sugar properly, which could cause problems with protein in your urine. The health professional collecting your sample should know this type of information about your medical history. They should also know what kind of testing kit they will use when processing your sample. This will help them interpret the result correctly.
Your lab report should include information on the date and time your sample was received by the laboratory, as well as the date and time of the result. It's important to remember that these are just guidelines. Some laboratories may require samples to be kept for up to seven days before reporting their results. You should also check the laboratory's policy on retaining samples to make sure you aren't being asked to pay extra for keeping yours longer than necessary.