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Preferred Sample Type

Sodium (Urine)

Suitable Specimen Types

  • Plain Spot Urine
  • 24 Hour Urine Plain
0.1 mL urine

Sample Processing in Laboratory

Usual

Sample Preparation

Usual

Turnaround Time

1 day

Sample Stability

Usual

Sodium (Urine)

General Information

Urinary sodium, together with assessment of volume status, is useful in the differential diagnosis of hyponatramia. Urinary sodium levels are also frequently ordered during the workup of acute renal failure with the fractional excretion of sodium used as an important marker in distinguishing pre-renal from post-renal failure.

Notes

Please note, from 22/7/19 analysis performed using Abbott Alinity analyser.   The test is awaiting UKAS accreditation.

Reference Range

40-220 mmol/24h

Source : Abbott Diagnostics

Specifications

  • EQA Scheme?: Yes