title: Nonutility of repeat laboratory testing for detection of Clostridium difficile by use of PCR or enzyme immunoassay.
abstract: The diagnostic gains of repeat testing for Clostridium difficile by enzyme immunoassay and PCR (i.e., initial negative result followed by positive result) within a 7-day period were 1.9 and 1.7%, respectively. There is little value of repeat testing for C. difficile by enzyme immunoassay or PCR.
authors.affiliation: Division of Clinical Microbiology, College of Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA.
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Aichinger
authors.forename: Cathy D
authors.initials: CD
authors.lastname: Schleck
authors.forename: William S
authors.initials: WS
authors.lastname: Harmsen
authors.forename: Lisa M
authors.initials: LM
authors.lastname: Nyre
authors.forename: Robin
authors.initials: R
authors.lastname: Patel
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016360:Clostridioides difficile / Q000302:isolation & purification*; D004761:Enterocolitis, Pseudomembranous / Q000175:diagnosis*; D006801:Humans; D007124:Immunoenzyme Techniques / Q000379:methods; D008875:Middle Aged; D016133:Polymerase Chain Reaction / Q000379:methods
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