Test Details

• Discipline:

  Biochemistry

  Biochemistry

• Specimen Container Adult:

  Plain universal container (random urine sample), plain or acid-rinsed bottle (24 hour urine collection)

  Plain universal container (random urine sample), plain or acid-rinsed bottle (24 hour urine collection)

• Specimen Container Paediatric:

  Plain universal container (random urine sample)

  Plain universal container (random urine sample)

• Minimum Volume Adult:

  25 mL aliquot of the 24h collection

  25 mL aliquot of the 24h collection

• Minimum Volume Paediatric:

  2 mL for randome urine

  8 mL for 24h collection

  2 mL for randome urine

  8 mL for 24h collection

• Sample Stability:

  Store sample at 4°C

  Store sample at 4°C

• Transport Requirements:

  Post

  Post

• Reference Ranges:

  - Citrate:creatinine ratio:

  0.04-0.33 mmol/mmol  (male) 

  0.11-0.55 mmol/mmol (female)     

  - Urine citrate output = 1.3 - 6.0 mmol/24hr   

  - Citrate:creatinine ratio:

  0.04-0.33 mmol/mmol  (male) 

  0.11-0.55 mmol/mmol (female)     

  - Urine citrate output = 1.3 - 6.0 mmol/24hr   

• 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