Ch7: Plating Media. Flashcards
- Bile esculin agar (BEA).
Differential isolation and
presumptive identification of
group D streptococci and enterococci.
- Bile esculin azide agar with vancomycin.
Selective and differential for cultivation of vancomycin-resistant enterococci from clinical and surveillance specimens.
- Blood agar.
Cultivation of
nonfastidious microorganisms,
Determination of hemolytic reactions.
- Bordet-Gengou agar.
Isolation of Bordetella pertussis and Bordetella parapertussis.
- Brain heart infusion
agar or broth.
Cultivation of
fastidious organisms.
6. Buffered charcoal-yeast extract agar (BCYE).
Enrichment for Legionella spp.
Supports the growth of
Francisella and Nocardia spp.
- Buffered charcoal-yeast extract (BYCE) agar with antibiotics.
Enrichment and selection for Legionella spp.
- Burkholderia cepacia selective agar.
For recovery of B. Cepacia from cystic fibrosis patients.
- Campy-blood agar.
Selective for
Campylobacter spp.
- Campylobacter thioglycollate broth.
Selective holding medium for recovery of Campylobacter spp.
Incubated at 4oC for cold-enrichment.
- CDC anaerobe
5% sheep blood agar.
Improved growth of obligate, slow-growing anaerobes.
- Cefoperazone, vancomycin, amphotericin (CVA) medium.
Selective medium for isolation of Campylobacter spp.
- Cefsulodin-irgasan-novobiocin (CIN) agar.
Selective for Yersinia spp.;
may be useful for isolation of Aeromonas spp.
- Chocolate agar.
Cultivation of fastidioius microorganisms such as Haemophilus spp., Brucella spp. and pathogenic Neisseria spp.
- Chromogenic media.
Designed to optimize growth and differentiate a specific type of organism. Chromagars are routinely used in the identification of yeasts, methicillin-resistant Staphylococcus aureus (MRSA), and a variety of other organisms.