PPIXPositive Physicians Insurance Exchange (Pennsylvania)
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PPIX is phototoxic in skin; when exposed to light PPIX reacts with varying intensity which can cause excruciating pain.
5) Nonstandard abbreviations: BPb, blood lead; NHANES, National Health and Nutrition Examination Survey; EP, erythrocyte protoporphyrin; GFAAS, graphite furnace atomic absorption spectrometry; PPIX, protoporphyrin IX; NPV, negative predictive value; FPR, false-positive rate; and FPP, false-positive proportion.
9) It is expected that by the end of 1996, all US laboratories will eventually use the correct value for PPIX (m[member of] = 297).