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Test Name:
Gram Stain


  • SBMF No:
    21081
  • Performance Lab Name:
    Microbiology
  • Test Mnemonic:
    GRAM
  • ABN:
    Not required
  • CPT Code:
    87205
  • LOINC Code:
    664-3
  • Test Includes:
    Gram stain only
  • Spec Type:
    Any clinical site or fluid
  • Spec Container:
    Sterile leak-proof container or sterile swabs from "Culture Collection/Transport System"
  • Pref Vol:
    Liquid:1.0 mL
    Tissue:1.0 sq mm
    Swabs: Two (2)
  • Min Vol:
    Swabs: One (1)
  • Fasting:
    No
  • Spec Collect:
    Varies; dependent on source
  • Spec Process:
    Varies; dependent on source
  • Spec Store Transport:
    Room temperature
  • Methodology:
    Microscopic Examination
  • Use:
    Screen for bacteria in clinical material
  • Clinical Significance:
    The Gram stain is the initial key in the recognition of microorganisms from clinical specimens.
  • Reference Range:
    Dependent upon site of specimen
  • Day Run:
    Sun-Sat (daily)
  • Time Run:
    As received
  • Time Reported:
    4:00 am; 8:00 am; 4:00 pm; 11:30 pm
  • Test Type:
    MICROBIOLOGY