G+

Question 1

NADPH oxidase deficiency
susceptible to catalase producing organisms (host H202 not converted to reactive oxygen species, instead is bacteria substrate)

Answer 1

chronic granulomatous disease

Question 2

forms large golden colonies on gross exam (colonies of pigmented bacteria)

Answer 2

s. AUreus = gold

Question 3

yellow (sulfur) granules on gross exam (colonies of pigmented bacteria surrounded by neutrophils)

Answer 3

actinomyces israeli

israel has yellow sand

Question 4

blue-green pigment on gross exam (colonies of pigmented bacteria)

Answer 4

pseudomonas aeruginosa

pseudomonas is associated with water and air: hot tub faliculitis, burn infections, sweaty sneakers
(blue/green)
AERUGala = green

Question 5

red pigment on gross exam (colonies of pigmented bacteria)

Answer 5

serratia marcescens

maraschino cherry = red

Question 6

skin infections caused by s. pyogenes (group A strep) and s. aureus

Answer 6

cellulitis: deep skin infection (warm, tender, red, edema)
impetigo: superficial skin infection (red, small vesicles or blisters, vesicles can rupture and leak yellow fluid “honey-crusted” lesion”, skin/face/mouth/cheeks

Question 7

most common aerobic skin flora

Answer 7

staph epidermidis