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8 Cards in this Set
- Front
- Back
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What are the 3 major pathogenic species of staphylococci?
Which is coagulase positive? |
Staph aureus (coagulase positive), staph epidermidis, and staph saprophyticus
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Generally describe the types of proteins that make staph aureus so destructive?
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Proteins that disable immune defenses (ie Protein A), penicillinase, and proteins that tunnel through tissue (ie hyaluronidase). Exotoxins such as exfoliatin, enterotoxin, and toxic shock syndrome toxin.
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What are the two groups of diseases staph aureus causes? List the individual diseases?
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EXOTOXIN RELEASE – gastroenteritis, scalded skin syndrome, toxic shock syndrome
DIRECT ORGAN INVASION – pneumonia (community-acquired), meningitis, osteomyelitis, acute bacterial endocarditis, septic arthritis, skin infections, bacteremia/sepsis, UTI (come up with a pneumonic for this one!!) |
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Describe the clinical features of toxic shock syndrome?
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Sudden onset of high fever, nausea, vomiting, and watery diarrhea. A few days later: diffuse erythematous rash. Later, desquamation of the palms and soles. May be associated with septic shock.
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Scalded skin syndrome usually affects which demographic?
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Neonates with local infection of the umbilicus or older children with skin infections.
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What is MRSA? How is it treated?
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Methicillin-resistant staph aureus. Treated with vancomycin.
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Where can staph epidermidis be seen?
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Hospitalized patients – infections of foley catheters, IVs, prostheses.
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What are the two leading causes of UTIs in sexually active young women?
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E coli and staph saprophyticus.
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