Collect a 24 hour urine sample.
Onsite [NJH]: Transport to lab within 1 hour.
Preferred volume: 1 mL aliquot of urine from a well mixed 24 hour collection in a labeled polypropylene or similar plastic tube.
Minimum Volume: 0.3 mL aliquot of urine from a well-mixed 24 hour collection.
Offsite: Frozen. Send urine aliquot Priority Overnight via FedEx and in a well insulated container on dry ice.
Analyze Immediately at RT (15-25°C)
48 hours refrigerated at 2-8°C
24 hour urine specimen is the only acceptable sample type.
Monday - Friday
Ion Selective Electrode
Female: 100-300 mg/24 hours
Male: 100-300 mg/24 hours