A urinary sodium (24-hour urine sodium) test is used to measure the amount of sodium in a person’s urine over a 24-hour period.
When this test is required
Abnormal levels of sodium in the urine may indicate an underlying medical condition, such as dehydration or kidney disease. Additional tests and examinations may be needed to fully diagnose and manage any underlying conditions. It is important to discuss any concerns or questions with a healthcare provider.
What the Test Detects
It is important to follow any instructions provided by the healthcare provider regarding sample collection and test preparation to ensure accurate results.
Preparation for the Test
To prepare for the test, a person may be instructed to avoid certain foods or medications that can affect sodium levels. They may also be instructed to drink plenty of fluids during the collection period.
Sample Requirements
To perform the test, a person will need to collect all of their urine over a 24-hour period. The urine should be collected in a clean container and refrigerated during the collection period.
Additional Notes
The test is used to evaluate kidney function and to diagnose and monitor conditions that affect sodium levels, such as dehydration, heart failure, or kidney disease. It is also used to monitor the effectiveness of treatment for these conditions.
