We have been using the Merck "Merckognost Urinary Calculi Analysis kit 1.11003.001" for many years. This is a wet chemistry semiquantitative analysis system. The information it provides is adequate for clinical management of most patients. There is no external QA program readily available to us. ************************* Bruce Campbell Chemical Pathologist Sullivan Nicolaides Pathology ph 07 3377 8672 fax 07 3870 5989 ************************* On Tuesday, October 03, 2000 7:02 AM, Silvia Gracia [SMTP:[log in to unmask]] wrote: > Thank you very much for your anwsers > > > chemical test (spot tests) ? > > What do you think about them? > > Does anybody know a quality control program? > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%