Why is it necessary to collect midstream urine for testing?

Urine test is a method to help you know the signs of dangerous and latent diseases in your body and your health situation. However, not everyone knows how to collect clean and correct urine to do the best test.

Urine test is one of the common tests used to detect disorders and medical conditions of the body. Abnormal test results can reveal your current health, and you'll often be asked to have several other tests to find out the specific cause.
Urine test is usually used in the following cases:
Overall health check : This is part of the health check-up process, check in pregnancy (have gestational diabetes or not), preoperative preparation, screening for certain disorders such as diabetes, kidney disease, and liver disease.

Pathological diagnosis: When you have abdominal pain, back pain, frequent urination, pain when urinating, blood in urine... then you will be asked to do a urine test to diagnose the cause of these symptoms. Monitor your medical condition: Once diagnosed with kidney or urinary tract disease, your doctor will recommend regular urine tests to monitor your condition and the effectiveness of your treatment. Pregnancy tests: When you take a pregnancy test, you need to measure the level of hCG hormone in your urine to detect whether you are pregnant or not.

First, it is necessary to understand what midstream urine is. This is a urine sample that does not collect the first or last part of the urine that comes out.
The meaning of midstream urine collection technique is to reduce the risk of the urine sample being contaminated with bacteria from the hands or around the urethra, the tube that carries urine out of the body.

3.1. Requirements before the test You can eat and drink normally before taking a urine sample for testing. However, some medications can affect test results. Therefore, stop the following drugs for accurate results:
Vitamin C supplements Metronidazole, Riboflavin, Methocarbamol, Nitrofurantoin Anthraquinone laxatives. 3.2. Steps to collect midstream urine Here are the steps to collect midstream urine for testing:
Step 1: The tester needs to wash his hands and clean the external genitals with water, then dry.
Step 2: Remove the sample container cover and set aside to dry. Do not let anything touch the inside of the cap, rim, or inside the test vial.
Step 3: Start urinating, discard the first part of the urine, use the midstream urinal and discard the last urine. Collect about 1/2–2/3 of the urine sample into the container.
Step 4: Close the lid of the urine sample container and then give the urine sample to the nurse or doctor.

Recommended video:


Periodic health check at Vinmec: Protect yourself before it's too late!

SEE ALSO:
Why do you need a urine test during pregnancy? Significance of ASC in Urinalysis What can urine test results during pregnancy predict?