Wounds (deep, superficial), Aspirates, Other Page 1
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Contact us to obtain critiques older than 5 years.
Scroll down to find Critique number of older challenges and a brief description.
Some older archived critiques are included in this list, but CMPT advises visitors to also consult recent literature.

The colour of some of the photographs has been altered to either best show the bacteria and/or cells.
Viewed under oil immersion field with a light microscope unless stated otherwise. See Gram protocol
gs094_1GS094-1 Joint Fluid smear: 4+ (>10/oif) neutrophils, 3+ (11-50/oif) gram positive cocci. Click on image to see bigger image.
g092G092 Neck Abscess Smear: 4+ (>10/oif) neutrophils,  3+ (11-50/oif) gram negative bacilli (Fusobacterium nucleatum). Click on image to see bigger image.
g091 G091 Diabetic Wound smear - companion to M091-3: Pseudomonas aeruginosa 4+ (>10/oif) neutrophils and 3+ (11-50/oif) gram negative bacilli.
gram-positive bacilli, gram-negative bacilliG074 Tissue Gram smear - companion to M074-3: no cells seen, 2+ (2-10/oif) gram-positive bacilli, 2+ (2-10/oif) gram-negative bacilli.
Clostridium perfringens and Pseudomonas aeruginosa
M053-5 gram smear gram-negative bacilli, large gram-positive bacilli suggestive of ClostridiaM053-5 Wound - abdominal abscess: Enterobacter aerogenes and Clostridium septicum On Gram smear C. septicum may appear as large, relatively short, fat gram-positive bacilli with sub-terminal spores, but this organism typically decolorizes and may appear as ‘gram-negative bacilli.’
Click to view bigger picture. Click to see larger photograph. G053 Wound smear (post-operative infection): no cells seen, 3+ (11-50/oif) gram-negative bacilli, 3+ (11-50/oif) gram-positive bacilli, suggestive of Clostridia
G042 Deep wound smear for Gram stain: 4+ (> 10 per low power field) neutrophils, 3+ (11-50/ oil immersion field) gram-positive cocci, 3+ (11-50/ oil immersion field) gram-negative bacilli or coccobacilli (S. aureus and B. fragilis)
G041 Neck aspirate gram smear: neutrophils and gram-negative fusiform bacilliG041 Neck aspirate smear for Gram staining: 4+ (>10/oif) neutrophils, 3+ (11-50/oif) gram-negative fusiform bacilli
Culture M041-5 yeilded Fusobacterium nucleatum.
G023 Human bite deep woundG023 Deep wound abscess (human bite) smear for Gram Stain: 4+ neutrophils, 4+ gram-negative bacilli and/or 4+ gram-negative coccobacilli (B. fragilis and E. corrodens)
G011 Abdominal wound Gram smear - neutrophils and gram-positive cocci

G011 Abdominal wound : 4+ neutrophils and many (3+ - 4+)  gram-positive cocci (S. aureus and E. gallinarum)
G22-2 G22 Wound smear - trauma associated burn (motor-cycle accident) 3+-4+ neutrophils, 3+-4+ gram-positive bacilli (Bacillus cereus) [Compare to Clostridia, e.g., use aerotolerance and catalase. ]
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