Test Directory

Sodium (urine)

Containers - Adult

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Container for 24 Hour Timed Specimen (5 Litre)
Additive per Container

None

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Sterile Universal 20ml
Volume Range

​1.0 ml

Additive per Container

None

Containers - Child

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Sterile Universal 20ml
Volume Range

1 mL

Additive per Container

None

Reference ranges

​Interpret with respect to serum sodium concentration and dietary intake.

Laboratory Site

RIE
51 Little France Crescent
Old Dalkeith Road
Edinburgh
EH16 4SA
Telephone (Biochemistry): 0131 242 6806
SJH
Howden Road West
Howden
Livingston
West Lothian
EH54 6PP
Telephone: 01506 523000
WGH
Crewe Road South
Edinburgh
EH4 2XU
Telephone (Biochemistry): 0131 537 1910/1

Availability

Mon - Sat

Anticipated turnaround

1 day

General additional information

Urine excretion reflects dietary intake. Interpretation depends on the clinical situation. A spot sodium of > 20 mmol/L is inappropriate in an adult with hyponatraemia. Paired blood and urine required for fractional sodium excretion.