24 Hr: NA24U<br>Random: NAU
Na+ - Urine Sodium Cation - Urine Sodium Electrolyte
Specimen Collection Requirements
Preferred: 24-hour Urine, one sterile container, refrigerate during collection Also acceptable: Random Urine
Collect urine over 24 hours. Refrigerate during collection. Preservatives are not necessary and may interfere. Mix urine well before removing aliquot. Record collection time interval and total volume on transport tube and test request form.
Grossly hemolyzed specimens
Ambient (18-25°C): 24 hours; Refrigerated (2-8°C): 7 days; Frozen (at or below -20°C): 2 months
Samaritan Health Services Laboratories
TIMED URINES: 40-220 mmol/24 hours
RANDOM URINES: Not established.
Thursday, January 5, 2017 03:42:30 AM