sodium phosphate enema proctolysis enema atleast 100 ml quantity tolerance 5 age item category normal total po value variation permitted max 8 lacs sodium phosphate enema proctolysis enema atleast 100 ml quantity tolerance 5 age item category normal total po value variation permitted max 8 lacs sodium phosphate enema proctolysis enema atleast 100 ml quantity tolerance 5 age item category normal total po value variation permitted max 8 lacs