<prompt> Low serum cobalamin and elevated serum folate levels are seen in?Acute myeloid leukemiaCeliac sprueBacterial overgrowth syndromeChronic myeloid leukemia  <response>: Low serum cobalamin seen in Blood cancer but depletion of both Vit B12 and folic acid. So, leukemia Ruled out. Celiac Sprue - Involvement of DuodenumJejunumIleum Folic acid absorption- Jejunum Vit B12 absorption - T. Ileum So, Celiac spure ruled out Bacterial overgrowth syndrome Ileum involvement Vit B12 Bacteria produce Folate products-Folic acid IOC: Jejunal Aspirate culture Rx: Antibiotics 