Does a routine urine test require holding in urine?
Feb 28, 2023
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Urinalysis generally does not require holding urine. In addition, if the patient holds urine, the bladder becomes distended, which may increase the number of red blood cells in the urine and affect the urinalysis results. Therefore, it is unnecessary to deliberately hold urine for this test. If abnormalities are detected in the urinalysis, prompt treatment is required, with the appropriate therapeutic approach selected based on the underlying cause.
Urinalysis generally does not require holding in urine.
Urinalysis is a routine examination of urine commonly used to diagnose urinary system disorders such as urethritis and cystitis. It can also help detect diseases in other systems, such as diabetes and jaundice. Morning urine is typically preferred for urinalysis because overnight concentration increases the levels of various substances in the urine, making it easier to detect abnormalities such as white blood cells, protein, or glucose, which aids in accurate diagnosis. Only 5–10 mL of urine is needed for the test. If morning urine is unavailable, random urine samples can be used as long as the volume reaches 5–10 mL.
In addition, if a patient holds in urine, causing bladder distension, this may lead to an increased number of red blood cells in the urine, potentially affecting the accuracy of the urinalysis results. Therefore, there is no need to intentionally hold in urine before the test. If abnormal findings are detected in urinalysis, timely treatment should be initiated based on the underlying cause, with appropriate therapeutic strategies selected accordingly.
