WAYNE, Pa.--(BUSINESS WIRE)--To help improve the quality and reliability of urinalysis results, Clinical and Laboratory Standards Institute (CLSI) updated the document Urinalysis; Approved Guideline—Third Edition (GP16-A3). Urinalysis is a simple, rapid, and basic part of clinical laboratory testing. Its usefulness is proven in diagnosis of disease (diseases of the kidney, urinary tract, and liver, as well as metabolic disorders such as diabetes), in monitoring the effectiveness of treatment of chronic problems, and in screening for asymptomatic conditions.