24 hour urine
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: 1 mL of urine from a well mixed 24 hour urine collection in a labeled polypropylene or simiilar plastic tube.
Offsite: Frozen. Send urine aliquot Priority Overnight via FedEx and in a well insulated container on dry ice.
8 hours at room temperature.
24 hours refrigerated at 2-8°C
>24 hours frozen at -20°C
24 hour urine sample is the only acceptable sample type.
Random collections must be ordered with test code UKRX.
Monday - Friday
Ion Selective Electrode
Female: 25-125 mmol/24 hours
Male: 25-125 mmol/24 hours