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25 Cards in this Set
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Q: What are the growth characteristics of K. pneumoniae
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A: Large antiphagocytic capsule, giving it a mucoid appearance and producing a thick, bloody, "currant-jelly" sputum
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Q: What is most characteristic of K. pneumoniae infections?
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A: Currant-jelly sputum
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Q: Paired, kidney bean-shaped diplococci within leukocytes in a urethral discharge
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A: Neisseria gonorrhoeae
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Q: How is N. gonorrhoeae differentiated from N. meningitidis?
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A: N.m. ferments glucose AND maltose whereas N.g. ONLY ferments glucose
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Q: Leading cause of septic arthritis
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A: Neisseria gonorrhoeae
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Q: How does N. gonorrhoae arthritis present?
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A: Monoarticular arthritis of the knee, ankle, or wrist after a bout of urethritis
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Q: Infection of neonate passing through an infected birth canal results in opthalmia neonatorum and purulent conjuntivitis
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A: Neisseria gonorrhoeae
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Q: How are Neisseria gonorrhoeae eye infections prevented in babies in the U.S.?
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A: Receive required administration of tetracycline, erythromycin, or silver nitrate drops
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Q: Sexually transmitted disease that can lead to pelvic inflammatory disease that then predisposes to ectopic pregnancy
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A: Neisseria gonorrhoeae
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Q: What is the the second most notifiable disease in the United States?
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A: Pelvic inflammatory disease from Neisseria gonorrhoeae infection
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Q: Leading cause of meningitis among military recruits and dormitory settings
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A: Neisseria meningitidis
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Q: Patients with what immune deficiencies are particularly susceptible to N. meningitidis infection?
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A: Complement components C6-9 "membrane attack complex"
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Q: Septicemia resulting from this organism can result in progressive hypotention, DIC, widespread vascular purpura, and bilateral adrenal hemorrhage
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A: Neisseria meninigitidis
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Q: What N. meningitidis disease process is rapidly fatal without antibiotic treatment?
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A: The shock and adrenocortical insufficiency of Waterhouse-Friderichsen Syndrome
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Q: This organism is transmitted through the bite of a domestic cat or dog and can result in an abscess, cellulitis, and osteomyelitis
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A: Pasteurella multocida
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Q: What are growth characteristics of Pasteurella multocida and location of normal flora?
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A: Short, encapsulated, bipolar staining organism; part of the nasopharyngeal flora of domestic dogs and cats
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Q: Urease-postive organism that causes an alkaline urine predisposing to the formation of urinary calculi
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A: Proteus vulgaris/mirabilis
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Q: Significant treatment factors of Proteus spp.
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A: These highly motile organisms are often refractory to antibiotic treatment because they often become trapped within stones
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Q: Major cause of pneumonia in burn patients and Cystic fibrosis patients
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A: Pseudomonas aeruginosa
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Q: What are the growth characteristics of P. aeruginosa?
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A: Obligate aerobe requires only trace elements for growth (cysteine/iron on charcoal yeast extract), blue-green colonies (pyoverdin/pyocyanin), and characteristic fruity odor
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Q: What is the etiology of P. aeruginosa infection?
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A: Major cause of nosocomial infections; colonizes aspirators, water and ice dispensers, catheters, IV lines, and even dilute disinfectant solutions!
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Q: Infection can result in folliculitis, swimmer's ear, pneumonia, and sepsis with the development of characteristic skin lesions (Ecthyma gangrenosum)
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A: P. aeruginosa
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Q: Where is P. aeruginosa especially good at growing in?
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A: Inadequately chlorinated hot tubs
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Q: Causes a self-limiting enterocolitis associated with the consumption of contaminated eggs and poultry
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A: Salmonella enteritidis
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Q: What is significant with Salmonella enteritidis infection?
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A: This highly motile organism requires a large infectious dose, which distinguishes it from Shigella spp.
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