Aliquot from a random urine sample.
Onsite [NJH]: Transport to lab within 1 hour.
Preferred volume: 1 mL aliquot from a random urine sample.
Minimum volume: 100 mcL aliquot from a random urine sample.
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
Random urine sample is the only acceptable sample type. 24 hour collections must be ordered with test code UNAX.
Ion Selective Electrode