…15 % indicates iron deficiency whatever the ferritin Vitamin B12 150–650 pmol/L Grey zone 150–250: add homocysteine or methylmalonic acid Folate 7 nmol…

…In chronic anaemia with a treatable cause — iron deficiency, B12 deficiency, folate deficiency — transfusion is rarely the right measure. Contraindications Anaemia that can be corrected…

…involvement. Work up of unexplained iron, B12 or folate deficiency when blood tests are insufficient. Contraindications Severe coagulopathy or ongoing anticoagulation — correct this first . Thrombocytopenia…