Total urine porphyrin
Clinical Background:
Used in the investigation of acute unexplained abdominal pain or neurological symptoms where a undetectable concentration of total urine porphyrin (TUP) would exclude an acute porphyria as the caus...
Used in the investigation of acute unexplained abdominal pain or neurological symptoms where a undetectable concentration of total urine porphyrin (TUP) would exclude an acute porphyria as the cause.
Test Documents
Test Details
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Discipline:
Biochemistry
Biochemistry
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Specimen Container Adult:
Urine (Random sample)
Urine (Random sample)
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Specimen Container Paediatric:
Urine (Random sample)
Urine (Random sample)
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Minimum Volume Adult:
2 mL
2 mL
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Minimum Volume Paediatric:
2 mL
2 mL
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Special Requirement:
Protect from light. Send to the laboratory immediately.
Protect from light. Send to the laboratory immediately.
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Sample Stability:
If protected from light, samples are stable for 2 days at 2-8°C or 1 month at -20°C.
If protected from light, samples are stable for 2 days at 2-8°C or 1 month at -20°C.
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Interpretation:
Light results in degradation of the porphyrins which will produce a falsely low result.
Light results in degradation of the porphyrins which will produce a falsely low result.
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Reference Ranges:
TUP/creatinine ratio < 35 nmol/mmol
TUP/creatinine ratio < 35 nmol/mmol
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Factors Affecting Result:
Light causes degradation of porphyrins
Light causes degradation of porphyrins
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Routine Contact Name:
Duty biochemist
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Routine Telephone:
Freeman: 0191 244 8889
RVI: 0191 282 9719Freeman: 0191 244 8889
RVI: 0191 282 9719 -
Routine Email: