Urine-Sodium

CPT Code

84300

Specimen Type

Urine

Container Type

Sterile Specimen Container

Stability

Room Temperature: 45 days; 2-8°C, 45 days; -20°C, 1 year

Handling Instructions

Collect in Sterile Specimen Container, No Preservatives

Clinical Notes

The sodium content in the urine is a balance between dietary sodium (intake) and the renal excretion of sodium. Urine sodium levels are typically tested in patients who have abnormal blood sodium levels to help distinguish the cause, or to diagnose/monitor renal function/disease.