ABST TESTS (Antibiotic senstivity tests:ie a test to find out whaty antibiotic is effective in a infection)

Most pthological laborataries test only expensive antibiotics in ABSTs.Laboratories in Nursing home test only parenterally (by injection) give antibiotics even for a urine culture and ABST.This is pushing a patient that can be treated at home to be admitted to the nursing homeFirst line effective drugs like nitrfurantoin, nallidixic acid are not tested.One reeason for this is because the testing discs are provided by the pharmaceutical indstry free of charge.The labs do not care to purchase any thing more.