Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ch. 33 questions
Bacterial Diseases of the Skin
| Question | Answer |
|---|---|
| How does tetanus infection occur? | caused by spores from the soil that enter via a puncture wound (nail in foot) |
| What specific pathology does C. tetani cause? | jaw muscles to contract intensely--common name is lockjaw--actually all musclles of the body are affected |
| What animal is a source of anthrax seen in the United States? How is antrax prevented? | cattle are animal source in U.S.--prevvvented by vaccination and tx of cattle |
| How fast does M leprae grow? | organisms grow slowly and may incubate for 2-10 yrs befor infected pt shows sx. organisms do not grow in culture media |
| What parts of the body are infected be M. leprae? | infects skin and neurons |
| How is leprosy transmitted? | by direct contact--lepromatous leprosy--resp. aerosols--mot spread easily, as spouse of pts sometimes do not contract-even after yrs of contact--grows in 9-banded armadillos--can be transmitted by them |
| What is the incubation period for leprosy? | organisms grow extremely slow--may incubate for 2-10 yrs before infected person shows sx |
| How is leprosy dx and tx? | dx--observation of skin lesions and loss of sensation--tx--reserved ABT dapsone or other antibacterials in the case of resistance for 2 or more yrs |
| What organism causes gas gangrene? | C. perfringens |
| All people carry S. epidermidis. Where? | S. epidermidis is found on the skin |
| What wspecies of Staphylococcus is coagulase positive? | S. aureus is coagulase positive |
| What percentage of people in the hospital setting are carriers of staphylococcus? | 30-50% |
| List diseases caused by S. aureus? | food poisoning, nosocomial infections, impetigo, boils, desquamation or denuding in newborns, pneumonia, and osteomyelitis |
| List the virulence determinants and their functions common to all strains of S. aureus | Protein A--cloaks bacteria with human Abs--hemolysin--lyses RBCs--leukocidin--kills WBCs--coagulase--clots blood--catalase--degrades hydrogen peroxide |
| How are pyogenic staphylococcal infections primarily treated? | draining the pus |
| What does MRSA indicate? | methicillin-resistant S. aureus |
| what should be done to prevent staphylococcal transmission in the hospital setting? | staff must engage in strict hand washing and aseptic techniques |
| How stable to temperature is Staphylococcus aureus? | neither freezing nor food-warming temps will kill bacteria Staphylococcus aureus |
| Enterococcus faecalis is transmitted from where to where to cause infections? | normal flora from intestinal tract that causes infection when there is a gut perforation |
Created by:
heatherlvn
Popular Science sets