Test Directory
3301 Sodium, Urine Random
Specimen Type
Specimen Stability
Reference Range
Sterile urine container
7 days 2-8°C
20-110 mmol/L
Specimen Requirements
5 ml random urine in sterile urine container
Method
Ion-Selective Electrode (ISE)
Schedule
Mon-Fri
Turn-Around Time
24hrs
Instructions/Notes
Clinical Utility
The excretion of sodium varies with dietary intake. There is a diurnal variation of sodium excretion with excretion being greater during daytime than during the night. Decreased levels are seen in congestive heart failure, excessive sweating, diarrhea, pyloric obstruction, malabsorption and primary aldosteronism. Increased levels may be due to increased salt intake, failure of the adrenal glands, diabetic acidosis, salt losing renal disease, diuretic therapy and water deprivation dehydration.
CPT Codes
84300
