Covers basic concepts and clinical features of a large range of topics, as well as links to tools like guidelines. GP Notebook GP Notebook Lab Tests Online Although this site is patient-oriented, it makes a good reference tool for information on lab tests for routine care, diagnosis and treatment. Lab Tests Online NHS Clinical Knowledge Summaries This set of guidelines to support clinical decision making in general practice is maintained by the Department of Health and partner organisations. NHS Clinical Knowledge Summaries This article was published on 2024-08-21