definitely could be the case for some.
porphyria testing info for newcomers to the subject.
http://archderm.ama-assn.org/cgi/conten ... 133/9/1098
Screening of Patients With Iron Overload to Identify Hemochromatosis and Porphyria Cutanea Tarda
"A high serum ferritin level in the absence of evident cause should prompt investigation for both hemochromatosis and PCT. "
(might want to start thinking of looking at causes of high ferritin if up over 200 ng/ml)
http://www.labtestsonline.org/understan ... /test.html
"Porphyrin testing is used to help diagnose and sometimes to monitor porphyrias...
Tests for PBG and porphyrins may be ordered on a random urine specimen when a patient has symptoms that suggest an acute porphyria, such as abdominal pain, nausea, constipation, peripheral neuropathy (tingling, numbness, or pain in the hands and feet), muscle weakness, urinary retention, confusion, and hallucinations. When the initial tests are abnormal, these tests should be repeated on a 24-hour urine collection to determine how much PBG, ALA, and porphyrins are being excreted. Fecal porphyrin testing may be ordered to help distinguish between porphyrias.
Depending upon the patient’s age and symptoms, a test for urine porphyrins and/or the free erythrocyte protoporphyrin test should be ordered when a patient presents with blisters, scarring, redness, or other skin lesions in sun-exposed areas. A positive urine test is followed by analysis of a 24-hour urine collection to determine which porphyrins are present.
Enzyme testing is most commonly ordered to confirm the diagnosis of acute intermittent porphyria (porphobilinogen deaminase in red blood cells). This test is especially helpful in identifying family members of a known patient who have inherited the disease but have not yet developed signs or symptoms. Some reference laboratories can measure porphyrins in plasma, bile or other fluids, but this is not usually necessary to make a diagnosis."
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