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22 Cards in this Set
- Front
- Back
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Explain how the skin acts as a defense towards skin infections. |
The salty environment on the skin kills off the bacteria. |
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_________ __________ is transmitted by skin contact, nasal droplets and fomites
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S. aureus |
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Which of these are true about the staphylococcus bacteria? a. non-sporulating b.gram positive cocci c. tolerate high salt d. resistant to drying e. all of these are true |
e. all of these are true |
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What is the most dangerous virulence factor about staph? |
ability to lyse RBC's (hemolysis) |
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The "scalded skin syndrome" is caused by
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exotoxin mediated (AB toxin) - exfoliative
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The Crusty, itchy flakey lesion (often around the mouth), which is usually caused by staph or strep. |
Impetigo |
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Which antibiotic is most commonly prescribed to treat MRSA? |
Vancomycin |
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Which of these is not a method of transmission for MRSA? a. catheters b. indwelling lines c. surgical wounds d. kidney dialysis e. all of these |
e. all of these |
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Which type of MRSA can be treated with some antibiotics? a. hospital acquired MRSA b. community acquired MRSA |
b. community acquired MRSA |
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Which of these is the LEAST effective way to prevent transmission of S.aureus infections? a. hand washing b. isolation of MRSA patients c. prescribing broad-spectrum antibiotics d. proper cooking/refrigeration of food |
c. prescribing broad-spectrum antibiotics |
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The main reservoir for Group A Strep (GAS) is a. Throat b. Stomach c. Skin d. both a & c e. all of these |
d. both a & c |
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Strep throat and mild skin infections are due to what type of organism? |
Group A Streptococcus |
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An invasive infection of Group A Strep can result in a. Severe necrotizing fasciitis (“flesh-eating”) b. Streptococcal Toxic Shock Syndrome c. Severe organ damage d. death e. both a & b |
e. both a & b |
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Which genus of Streptococcus is responsible for "strep throat"? a. S. Pyrogenes b. S. Pneumoniae |
a. S. Pyogenes |
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Toxic Shock Syndrome can be caused by both _________ and _________ |
S. aureus and S. pyogenes |
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What causes "shock" in an infection? a. endotoxins b. cytokines c. exotoxins d. superantigens |
b. cytokines (in excessive amounts) |
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25% of the time the condition _________ ________ is fatal if left untreated, or will result in amputation. |
Necrotizing facillitis |
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Who is at greater risk for pneumococcal disease? a. children under 2 b. HIV patients c. African Americans d. Alaskan/ Native Americans e. all of these |
e. all of these |
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________________ commonly found in nasopharynx of healthy carriers. |
S. pneumoniae |
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Which of these is NOT a S. pneumococcal infection? a. pneumonia b. ear infections c. sinus infections d. strep throat e. meningitis |
d. strep throat; caused by S. pyogenes |
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The vaccine Pneumovax, is most commonly used to treat... |
capsular pneumococcals |
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Without the _________ , S. Pyogenes is not infectious.
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M Protein |
