66of 106Microbiology Checklist07.28.2015Evidence of Compliance:✓Written procedures for stool for O&P AND✓Patient reports/worksheets with concentration and permanent stain resultsREFERENCES1) Garcia LS, Diagnostic medical parasitology, 4th edition. Washington, DC: ASM Press, 20012) Clinical and Laboratory Standards Institute (CLSI).Procedures for the Recovery and Identification of Parasites From the IntestinalTract; Approved Guideline—Second Edition. CLSI document M28-A2 (ISBN 1-56238-572-0). Clinical and Laboratory StandardsInstitute, 940 West Valley Road, Suite 1400, Wayne, Pennsylvania 19087-1898 USA, 20053) Pritt BS. Parasitology Benchtop Reference Guide: An Illustrated Guide for Commonly Encountered Parasites. Northfield, IL: Collegeof American Pathologists; 2014.MIC.52190Stool Number/TimingPhase IThe laboratory has policies (developed with clinicians) for the number and/or timing ofcollection of stool specimens submitted for routine parasitology testing.NOTE: Suggestions made by the authors of a 1996 CAP Q-Probes study (Valenstein et al)include:1.Accept no more than two or three specimens/patients without prior consultation withan individual who can explain the limited yield provided by additional specimens2.Do not accept specimens from inpatients after the fourth hospital day, without priorconsultationThese recommendations are for diagnostic testing. Different policies may apply to tests orderedfor follow-up.REFERENCES1) Yannelli B, et al.Yield of stool cultures, ova and parasite tests, and Clostridium difficiledeterminations in nosocomial diarrhea. Am JInfect Control.1988;16:246-2492) Morris AJ, et al.Application of rejection criteria for stool ovum and parasite examinations. J Clin Microbiol.1992;30:3213-32163) Valenstein P, et al.The use and abuse of routine stool microbiology. A College of American Pathologists Q-probes study of 601institutions. Arch Pathol Lab Med.1996;120:206-2114) Cartwright CP. Utility of multiple-stool-specimen ova and parasite examinations in high-prevalence setting. J Clin Microbiol.1999;37:2408-2411BLOOD FILMS FOR MALARIA AND OTHER PARASITESMIC.52193Blood Parasite DetectionPhase IIThe microscopic examination of blood films submitted for detection of blood parasitesallows for detection of parasites responsible for malaria, babesiosis, trypanosomiasis andfilariasis.REFERENCES1) NCCLS.Laboratory Diagnosis of Blood-Borne Parasitic Diseases; Approved Guideline. NCCLS Document M15-A.(ISBN1-56238-401-5). NCCLS, 940 West Valley Road, Suite 1400, Wayne, PA 19087-1898 USA, 2000.2) Pritt BS. Parasitology Benchtop Reference Guide: An Illustrated Guide for Commonly Encountered Parasites. Northfield, IL: Collegeof American Pathologists; 2014.MIC.52195Percentage Parasitemia ReportingPhase IWhen blood films are positive for malaria parasites (Plasmodium spp.), the percentageparasitemia is reported along with the organism identification.