Urine protein test in the afternoon is not accurate enough, due to this time belongs to the random urine, with the influence of diet or drinking water, for the test results may have some impact.
If there is a dilution of urine, there may be false-negative test results, so it is best to keep morning urine for the urine test, while trying to select the mid-range urine.
Men need to turn up the foreskin when collecting urine samples to prevent the foreskin from being contaminated with foreskin scale and some bacteria, which may cause false-positive urine test results. Women should retain urine after cleaning the vulva and avoid menstruation to prevent blood from mixing with urine and causing the false impression of blood in urine.
If the patient needs to do urine protein test, it is recommended that the patient go to a regular hospital to consult a professional doctor to prescribe and evaluate the test results.