A 65-year-old woman is found to have microcytic anaemia on routine bloods (Hb 92 g/L, MCV 70 fL). She reports fatigue and occasional change in bowel habit. What is the most appropriate next step in management?AStart oral iron and repeat FBC in 6 months onlyBInvestigate for gastrointestinal blood loss with urgent bidirectional endoscopyCReassure and prescribe multivitaminsDAttribute the anaemia to ageing and monitorERefer to haematology only after iron therapy failsCheck my answer