Key role of Levitt’s carbon monoxide breath test in revealing coexistent Gilbert syndrome and erythropoietic protoporphyria: A case report

Figure 2 The classical algorithm for the evaluation of an isolated hyperbilirubinemia. Incorporating the recently developed Levitt’s carbon monoxide breath test into the hemolysis evaluation step could provide substantial benefits. Adapted from Pratt[1]. LDH: Lactate dehydrogenase.