This tool lists the most common organisms based on preliminary Gram stain - this is not a comprehensive list
Gram Positive Cocci
Gram Positive Bacilli
Gram Negative Cocci/Diplococci
Gram Negative Bacilli
Gram Negative CoccoBacilli
Acid Fast Bacilli
Acknowledgement
Adapted from the Joseph Brant Hospital Antimicrobial Stewardship Program