PubMed · 412150
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W B Buckingham. 1977. Half an Audit.. https://pubmed.ncbi.nlm.nih.gov/412150/
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The patient population at risk for opportunistic pulmonary infections has increased during the last decade. The spectrum of organisms causing opportunistic infections has also grown. With an ever broader list of potential diagnosis, a specific diagnosis of the cause of pulmonary disease becomes more important. Recent microbiologic advances have helped to facilitate the laboratory diagnosis of some of these agents. Immunoassays are available for the detection of antigen in nasopharyngeal secretions (respiratory syncytial virus, influenza) in serum (Cryptococcus species), and in urine (Legionella or Histoplasma species). Rapid-culture techniques are available for the culture and detection of various viruses, including cytomegalovirus. Molecular probes can now assist in the rapid identification of Mycobacterium tuberculosis and some fungi. In the near future, polymerase chain reaction-based techniques may assist in the detection of Pneumocystis carinii and Legionella, Chlamydia, Mycoplasma, and Mycobacteria species. An expeditious evaluation of pulmonary disease requires an understanding of the differential diagnosis of likely causes of pulmonary disease in specific immunosuppressed patient populations, an understanding of the most appropriate specimens to process for these diagnoses, and an understanding of the limitations (sensitivity and specificity) of these diagnostic tests. An understanding of the most appropriate specimens and tests in a given institution should allow for early, relatively specific treatment of many potentially life-threatening infections.
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OBJECTIVE: Quality improvement of laboratory diagnostics by general practitioners (GPs) through introduction of a simplified, problem-oriented application form, supported by information and feedback. DESIGN: Prospective descriptive study. SETTING: Laboratory of Clinical Chemistry and Haematology of St. Maartens Gasthuis, Venlo, the Netherlands and the GPs in the region. METHODS: The effects of the intervention were measured by counting the analyses requested by all GPs in the region in 1992, 1993 and 1994. Furthermore requests by every GP for fifteen selected analyses in the first 6 months of 1992, 1993 and 1994 were counted and reported together with the anonymous data of all colleagues. RESULTS: After the intervention a 23% reduction of the total number of analyses request by GPs was noticed. Blood sampling increased by 8% and the mean number of laboratory test requests per patient decreased from 5.9 to 4.2. The largest request reductions were noticed for analyses not listed on the application form. Measurements in the first 6 months of 1992, 1993 and 1994 showed continuation of the trend and a fadeaway of 'redundant' analyses. CONCLUSION: The introduction of a simplified problem-oriented application form for GPs supported by feedback caused a marked decrease of the number of (redundant) laboratory requests.