resp. cultures

Question 1

bac found in the upper resp

Answer 1

• s. pneumoniae
• s. arues
• H. influenza
• s. pyogenes
• m. caterallis
• GNR
• yeast
• BP
• Corynebacterium

Question 2

Group A strep

Answer 2

S. Pyogenes

• A disc sensitive
• GPC in chains
• cat neg
• beta hem, small colonies

Question 3

S. Pnemoniae

Answer 3

GPC/DC, little longer

• alpha hemolytic
• mucoid medium sized colonies
• cat neg
• p disc sensitive
• bile soluble

Question 4

H . Influenzae

Answer 4

GNDC

• grows grey colonies on chocalte
• x and V factors
• oxidase V but usually positive
• satillite growth around S. Aureus
• mucoid if encapsulated

Question 5

M. Catarrhalis

Answer 5

GNDC

• small grey colonies on chocalte
• DNAse pos
• oxidase pos
• will grow on a blood plate
• test for B-lactame susceptibilty

Question 6

S. Aureus

Answer 6

GPC clusters
- whitish colonies with B hemolysis
- cat and coag positive
- if coag neg so a PYR
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