Gram-positive — Flashcards

Flashcard 21: Strep pneumo is associated with a _____ colored sputum.

Answer: rusty

Flashcard 22: Bacillus cereus

Answer: +

Extra: bacilliaerobefood poisoning (reheated rice syndrome): emetic or diarrheal typecereulide

Flashcard 23: Actinomyces spp.

Answer: +

Extra: branching filaments resembling fungianerobenot acid fastoral/facial abcessespenicillin

Flashcard 24: Gram positive organisms stain _____.

Answer: purple/blue

Flashcard 25: Viridans streptococci

Answer: +

Extra: coccialpha-optochin resistantdental caries (S. mutans), bacterial endocarditis (S. sanguis)

Flashcard 26: Streptococcus pyogenes

Answer: +

Extra: coccibeta-bacitracinpharyngitis, cellulitis, impetigo, scarlet fever, necrotizing fasciitis, rheumatic fever, acute glomerulonephritis

Flashcard 27: acute mastitis

Answer: most commonly S. aureus infection

Extra: breast feeding

Flashcard 28: What organisms express the bacterial virulence factor: M protein?

Answer: group A Strep (aka S. pyogenes)

Flashcard 29: What pigment is produced by S. aureus?

Answer: yellow-gold mnemonic: it's in the name, man!

Flashcard 30: What culture medium is used to isolate C. diphtheriae?

Answer: Loffler's media on Tellurite plate