Gram-positive Bacteria
- “Gram-positive cocci in clusters” may suggest Staphyloccocus species.
- “Gram-positive cocci in pairs and chains” may suggest Streptococcus species or Enterococcus species.
- “Gram-positive diplococci” may suggest Streptococcus pneumoniae.
- “Branching Gram-positive rods, modified acid-fast stain positive” may suggest Nocardia species.
Gram-negative Bacteria
- “Gram-negative coccobacilli” may suggest Haemophilus species.
- “Gram-negative intracellular diplococci” may suggest Neisseria species.
- The organism that is present in “rice-watery-stools” and gives “Darting Motility” may suggest Vibrio Cholerae. It is a comma-shaped organism.
- “Lactose fermenting Gram-negative rods” may suggest Enterobacteriaceae.
- “Non-lactose fermenting Gram-negative rods, oxidase-positive” may suggest Pseudomonas species.
Others
- “Acid-fast bacilli” or “AFB” may suggest Mycobacterium species.
- “Germ-tube negative yeast” suggests non-Candida albicans yeasts.
- Candida albicans is a germ-tube-positive yeast.
- “Budding yeast” suggests yeast.
- “Fungal elements or hyphal elements” suggests mold.
References:
Antimicrobial Guidebook University of Nebraska Medical Center
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