Gram stains are performed on positive blood culture bottles. Match the organism that MOST closely resembles the description of the Gram stain morphology provided.
Select the correct match for each item from the drop-down box
Choose Francisella tularensis Yersinia pestis Brucella species Bacillus anthracis Large, gram-positive rods with square ends in short chains
Choose Francisella tularensis Yersinia pestis Brucella species Bacillus anthracis Gram-negative rod resembling Enterobacteriaceae , demonstrates bipolar staining
Choose Francisella tularensis Yersinia pestis Brucella species Bacillus anthracis Very tiny, pale staining, gram-negative coccobacillus; often difficult to see individual cells
Choose Francisella tularensis Yersinia pestis Brucella species Bacillus anthracis Small, gram-negative coccobacilli that appear gram-positive due to retention of crystal violet stain; individual cells present