Test Details

• Discipline:

  Biochemistry

  Biochemistry

• Specimen Container Adult:

  Plain universal container

  Plain universal container

• Specimen Container Paediatric:

  Plain universal container

  Plain universal container

• Minimum Volume Adult:

  1 mL urine

  1 mL urine

• Minimum Volume Paediatric:

  1 mL urine

  1 mL urine

• Sample Stability:

  3 days at 20-25C

  7 days at 4-8C

  >3 months at -20C

  3 days at 20-25C

  7 days at 4-8C

  >3 months at -20C

• Interpretation:

  Usually interpretation of urine osmolality requires knowledge of the fluid status of the patient and serum osmolality and urine sodium. Some of the causes of changes in osmolality include: diabetes...

  Usually interpretation of urine osmolality requires knowledge of the fluid status of the patient and serum osmolality and urine sodium. Some of the causes of changes in osmolality include: diabetes insipidus, SIADH, primary polydipsia, osmotic diuresis, acute renal injury, hypoadrenalism.
  For further information on interpreting osmolality please contact the duty biochemist.

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• Reference Ranges:

  Random: 50-1200 mmol/Kg 
  (Depending on fluid intake and hydration state)

  Random: 50-1200 mmol/Kg 
  (Depending on fluid intake and hydration state)

• Other Info:

  24 hour urine collection (plain bottle) also acceptable

  24 hour urine collection (plain bottle) also acceptable

• Routine Contact Name:

  Duty biochemist

• Routine Telephone:

  Freeman: 0191 244 8889
  RVI: 0191 282 9719

  Freeman: 0191 244 8889
  RVI: 0191 282 9719

• Routine Email:

  nuth.dutybiochemist@nhs.net