How to collect urine for urinalysis

Urinalysis is an indicator for examining diseases such as nephritis, and can provide very important clues for diagnosing the disease. If improper operations occur during the urine collection process, it will affect the results of the urine routine test and easily mislead the doctor's judgment of the disease. Before collecting urine for a routine urinalysis, be careful not to drink a lot of water or other beverages. Use a disposable clean urine cup to collect urine. The collected urine must be sent for examination within half an hour to avoid affecting the test results.

The significance of correct urine collection in urinalysis

Urinalysis has important clinical value in screening for kidney diseases, urinary system and diabetes, and it often provides important clues to the nature of the pathological process. Only qualified specimens can produce qualified results. Therefore, it is important to correctly retain urine specimens for routine urine examinations. If the method is incorrect, it will directly affect the test results and mislead doctors in choosing clinical treatment plans.

How to collect urine for urinalysis

1. Do not drink large amounts of water, coffee, strong tea, etc. before the examination.

2 When collecting, it is generally collected in a clean and dry container. Generally, physical examination centers will have disposable urine cups.

3 During the examination, about 10 to 30 mL of urine should be collected.

4Collect midstream urine. When collecting urine, keep the middle part of the urine, and do not collect the urine at the beginning or end of urination. Of course, sometimes for diagnostic purposes, you will be asked to collect the initial urine and the final urine.

5. Submit for inspection within the specified time. The collected urine should be sent for testing within half an hour, and no later than 1 hour.

6. Women should avoid menstruation and clean the vulva before collection to prevent the mixing of vaginal secretions.

7. Men with long foreskin should clean the urethral opening before urinating and lift up the foreskin when collecting urine.

Misunderstandings of urine collection in urinalysis

1. Think that morning urine is the next urine after you get up and empty your bladder.

This idea is wrong. Now everyone knows that you cannot drink water before retaining morning urine. In this case, you will not have urine in a short period of time. Even if you do have some, it does not meet the testing standards.

2 The collected urine specimen should be sent for examination as soon as possible:

In winter, the weather is relatively cold, so it is okay to send the sample for testing within 1 hour; but in summer, when the weather is hot, it is best to collect the sample and send it for testing immediately after arriving at the hospital. If you don’t have time to come to the hospital to collect your morning urine, put the collected urine sample in the refrigerator’s fresh-keeping layer.

Urine that has been retained for too long, the formed elements in the urine; especially when doing urine red blood cell difference, only fresh urine specimens meet the requirements.

3. The urethra opening is not clean and no midstream urine is retained.

Generally, the urine specimens required by doctors must be clean. When collecting urine, the first part should be discarded and the middle part should be kept.

4. Fever, cold, and urine retention during menstruation.

This is mainly for female patients. Generally, urine tests of female patients during menstruation will show urine protein, occult blood, etc. When you have a fever or a cold, your body will show some abnormalities. Many people will have protein in their urine tests at this time, so it is better to pay attention!