Newcastle Laboratories

Porphyrins, faeces

Clinical Background:

Faecal analysis is used for porphyria subtyping if the initial screening tests (porphobilinogen / total urine porphyrin) are abnormal.

Please refer to the "sample requirements for suspected porphyr...

Faecal analysis is used for porphyria subtyping if the initial screening tests (porphobilinogen / total urine porphyrin) are abnormal.

Please refer to the "sample requirements for suspected porphyria" document for investigation of porphyria.

 

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Test Documents

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:

    10 g faeces

    10 g faeces

  • Minimum Volume Paediatric:

    10 g faeces

    10 g faeces

  • Special Requirement:

    Sample must be protected from light.

    Sample must be protected from light.

  • Sample Stability:

    Store in the freezer

    Store in the freezer

  • Transport Requirements:

    Sample sent on dry ice to the referral laboratory

    Sample sent on dry ice to the referral laboratory

  • Interpretation:

    Interpretation is provided on the report by the referral laboratory

    Interpretation is provided on the report by the referral laboratory

  • Reference Ranges:

    Provided on report from referral laboratory

    Provided on report from referral laboratory

  • Factors Affecting Result:

    Light causes degradation of porphyrins

    Light causes degradation of porphyrins

  • Other Info:

    Please provide full clinical details as referral laboratory will not process samples without this information.

    Please provide full clinical details as referral laboratory will not process samples without this information.

  • 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:

Availability:

Sample sent to an external laboratory for analysis

Turn Around:

4 weeks

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