Sodium, Quantitation
Order Code: UNA
Order Form: Laboratory Requisition
Specimen:
Urine
Collection Medium:
Urine - 24 hour/timed plastic urine container
Alternate Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
24 hr collection; no preservative (or random specimen). Collections other than 24 hr will not be calculated for Meq/24 hr.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Analytic Time:
3 hours (upon receipt in laboratory)
Reference Range:
130-315 meq/24 hr
Methodology:
Ion Selective Electrode
Instructions:
Include date and time of 24 hour collection on requisition. No preservative. Send entire collection.
Sample Processing:
Submit urine in leak-proof plastic container.
Label transport tube with two patient identifiers, date and time of collection.
Sample Storage:
Room temperature or refrigerate if stored overnight, weekends or holidays.
Transport Instructions:
Place requisition in bag, seal bag, and tape securely to (urine) container.
Ship ambient or refrigerate.
CPT Code:
84300