All collected urine samples should be tested within 2 hours, and the dry chemistry and urine sediment related indicators should be tested and statistically analyzed, and the sample retention time and testing time should be recorded.
Extended data:
Routine urine examination is generally most suitable for morning urine examination. Morning urine refers to the first 1 urine when you get up in the morning. It is thicker, and there are more visible components in the urine than the urine diluted during the day. It is easier to find the abnormality of urine, and it can also avoid the influence of diet, drinking water, exercise and other factors.
The indwelling urine sample should be sent for inspection within 1 hour: to avoid the change of pH value affecting the visible components in urine, such as the destruction or shrinkage of red blood cells and white blood cells; In particular, fresh urine samples meet the requirements when doing urine red cell microscopy.
Routine urine examination is best to take urine from the middle section: to avoid urinary tract inflammation, leucorrhea and other substances polluting the urine and affecting the test results.