It is possible to eat for blood tests. Blood tests can be performed at any time and do not require venous blood collection, only fingertip blood collection. Routine blood tests include white blood cells, red blood cells, hemoglobin, neutrophils, eosinophils, basophils, monocytes, and platelets. In case of tonsillitis, such as purulent tonsillitis, routine blood tests can be performed to see if the blood count is elevated and if the white blood cells are elevated, especially if the neutrophils are elevated. If the white blood cells are significantly elevated, it indicates the presence of bacterial infection and can be treated with targeted antibiotics, including cefaclor tablets and levofloxacin hydrochloride capsules. Routine blood tests can also detect anemia and can also detect leukemia.