In a home with older toilets, an average flush uses about 3.6 gallons (13.6 liters), and the daily use is 18.8 gallons (71.2 liters) per person per day. In a home with ultra-low-flow (ULF) toilets, with an average flush volume of 1.6 gallons (6 liters), the daily use is 9.1 gallons (34.4 liters) per person per day.
Quick Answer. Elevated monocyte levels, or monocytosis, may be due to chronic inflammatory disease, stress response, leukemia, parasitic or viral infection or tuberculosis, as MedlinePlus indicates. A complete blood count gives insight into the number of each kind of blood cell present in the body, according to WebMD.
One study found that the most common cause of macrocytosis was medication (37%), followed by alcoholism (26%). Serum B12 and/or folate deficiency, bone marrow dysplasia and non-alcoholic liver disease each accounted for 6%. The most common cause of megaloblastic anaemia is pernicious anaemia.