Test Documents

• Sample Requirements for Suspected Porphyria.pdf

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:

  2 mL

  2 mL

• Minimum Volume Paediatric:

  2 mL

  2 mL

• Special Requirement:

  Sample must be protected from light.

  Sample must be protected from light.

• Sample Stability:

  Unknown at 15-25°C, 2 days at 2-8°C, 1 months at -20°C

   

  Unknown at 15-25°C, 2 days at 2-8°C, 1 months at -20°C

   

• Interpretation:

  Light results in degradation of the porphyrins which will produce a falsely low result.
  Interfering compounds e.g. urobiliogen removed during procedure.

  Light results in degradation of the porphyrins which will produce a falsely low result.
  Interfering compounds e.g. urobiliogen removed during procedure.

• Reference Ranges:

  PBG:creatinine ratio less than 1.5 umol/mmol.

  PBG:creatinine ratio less than 1.5 umol/mmol.

• Factors Affecting Result:

  Light causes degradation of porphyrins

  Light causes degradation of porphyrins

• 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