6. Laboratory Findings: Conjunctival Swab

Laboratory Findings: Conjunctival Swab

  • Routine culture
  • Day 1:
    • gram+ cocci in clusters on blood agar (BA)
    • Coagulase neg Staph
  • Day 3:
    • poorly staining gram+ rods on BA
    • catalase-positive
      Culture 

Breakpoint #3

  • What is the significance of the coag(-) staph?
  • How would you approach identifying the gram+ rods?