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Hows porphyria cutanea tarda diagnosed?

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Dr. David Rosenfeld
Pain Management

In brief: See below

The preferred screening test for pct is a measurement of porphyrins in plasma.
This can differentiate pct from variegate porphyria. The patterns of porphyrins in urine (predominately uroporphyrin and 7-carboxylate porphyrin) and feces (predominately isocoproporphyrin) help to confirm the diagnosis. The presence of an inherited deficiency of urod can be demonstrated by measuring the enzyme in rbcs.

In brief: See below

The preferred screening test for pct is a measurement of porphyrins in plasma.
This can differentiate pct from variegate porphyria. The patterns of porphyrins in urine (predominately uroporphyrin and 7-carboxylate porphyrin) and feces (predominately isocoproporphyrin) help to confirm the diagnosis. The presence of an inherited deficiency of urod can be demonstrated by measuring the enzyme in rbcs.
Dr. David Rosenfeld
Dr. David Rosenfeld
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