Guest guest Posted May 15, 2002 Report Share Posted May 15, 2002 I noticed this on a test we had done on my son back in 1998 (he is 13 now). FEP 47 ref. range 0-35 Does this test relate in any way to mercury? His blood lead level was in the normal range. 2 ref. range 0-25 I have noticed porphyrins mentioned on this list but I did not see this particular test. Thank you for your expertise. Quote Link to comment Share on other sites More sharing options...
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