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SODIUM, URINE, TIMED

Mnemonic

U NA T

Synonym

Na+ - Urine Sodium Cation - Urine Sodium Electrolyte

Includes

Urine Sodium, Urine Sodium/Day

Specimen Collection Requirements

Collect

Preferred: 24 hour urine without preservatives, refrigerate during collection. Also acceptable: Other timed urine collections.

Handling

Collect urine over 24 hours. Refrigerate during collection. Mix urine well before removing aliquot. Record collection time interval and total volume on the transport tube and test request form.

Preferred Volume

2.0 mL urine

Minimum Volume

0.5 mL urine

Transport

Refrigerated (2-8°C)

Stability

Ambient (18-26°C): 24 hours; Refrigerated (2-8°C): 7 days; Frozen (at or below -20°C): 2 months

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Ion Selective Electrode

Reference Values

Reference Values

Age

Male

Female

0 days – 5 years

Not established

Not established

6 years – 9 years

41 – 115 mmol/day

20 – 69 mmol/day

10 years – 13 years

63 – 177 mmol/day

48 – 168 mmol/day

14 years and older

40 – 220 mmol/day

40 – 220 mmol/day

CPT Codes

84300

Last Updated: Thursday, January 5, 2017 03:41:38 AM


Client Services: 503-413-1234