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Porphyrin Tests

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Also known as: Uroporphyrin; Coproporphyrin; Protoporphyrin; Delta-aminolevulinic Acid; ALA; Porphobilinogen; PBG; Free Erythrocyte Protoporphyrin; FEP
Formal name: Porphyrins
Related tests: Porphobilinogen Deaminase (PBG-D), Uroporphyrinogen Decarboxylase

At a Glance

Why Get Tested?

To help diagnose and sometimes to monitor porphyrias

When to Get Tested?

When a person has symptoms that suggest a neurologic porphyria (e.g., abdominal pain, tingling or numbness in the hands or feet, muscular weakness and/or alterations in thought or mood) or a cutaneous porphyria (e.g., redness, blistering, or scarring of sun-exposed skin)

Sample Required?

A blood sample drawn from a vein in your arm, a random or 24-hour urine sample, and/or a stool sample

Test Preparation Needed?

If a neurologic porphyria is suspected, the sample should be collected during an acute attack.