Read the stain
Microbiology — Image Library
Gram stains, special stains and culture plates annotated to identify the organism and guide treatment.
- Stain + morphology
- Annotated
- Bug to drug
- Treatment-linked
What's inside the Microbiology library
The microbiology library moves from stain to organism to therapy — Gram reaction, shape and arrangement first — so identification drives the antibiotic choice.
Gram stain
Gram-positive organisms stain purple, Gram-negative pink. Cocci in clusters suggest Staphylococcus; cocci in chains suggest Streptococcus; Gram-negative rods suggest Enterobacterales. Shape and arrangement narrow the organism before the culture is back.
Acid-fast bacilli
On Ziehl-Neelsen staining, acid-fast bacilli appear as red rods against a blue background, identifying Mycobacterium tuberculosis. A positive smear changes isolation and notification, not just the prescription.
Work through the full Microbiology library in MedNext
Every image is annotated the same way, mapped to high-yield exam topics and linked to its chapter.
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