False-Positive Gram-Stained Smears


Journal Article

The rate per 1,000 smears showing nonviable Gram-negative bacilli (false-positive smears) increased from a baseline of 10.8 to 38.5 following purchase of new culture-collection devices; the rate decreased to 8.0 following replacement of contaminated culture sets. False-positive reports led to changes in therapy for five patients. In addition to being sterile, commercial culture-collection devices should be certified by the manufacturer as being free of stainable microorganisms or as unsuitable for preparation of Gram-stained smears. © 1979, American Medical Association. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Hoke, CH; Cox, RL; Reller, LB; Mirrett, S; Batt, JM

Published Date

  • February 2, 1979

Published In

Volume / Issue

  • 241 / 5

Start / End Page

  • 478 - 480

Electronic International Standard Serial Number (EISSN)

  • 1538-3598

International Standard Serial Number (ISSN)

  • 0098-7484

Digital Object Identifier (DOI)

  • 10.1001/jama.1979.03290310018005

Citation Source

  • Scopus