Rickettsiae and Spirochetes
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20 terms
Terms | Definitions |
|---|---|
 Rickettsial Disease | obligate intracellular parasites, suseptible to tetracyclines, Trans. by arthropods (lice, ticks, flea) |
| Rickettsial Triad | Fever, HA, rash (tache noire-scab like lesion w/ surrounding redness, cigarette burn) |
| Weil-Felix Test | used to diagnose typhus or spotted fever |
| RMSF causative organism | Rickettsia rickettsi |
| RMSF | tick bite from hard shell tick (wood, dog, Lone-star), fever, HA, rash start peripherally (soles and plams), petichiae, fever before rash |
| African tick bite fever | typical signs, inoculation eschars (cigarette burns) |
| Epidemic Typhus | louse borne, FLS, macular rash(begins on trunk), cold climates w/ overcrowding |
| Brill-Zinsser | typhus recurrence later in life |
| Murine/Endemic Typhus | Rat fleas, rarely fatal, like Epidemic Typhus but milder |
| Epidemic Typhus Tx | Doxy, Lindane powder |
| Tsutsugamushi Disease (scrub typhus) | mite born(chiggers), FLS, lesion at site (becomes toche noire, cigarette burn), acute hearing loss |
| Tsutsugamushi Disease (scrub typhus) drugs | Doxy (Z-pack in SE asia) |
| Q-Fever | organisms are transmitted by contact with infected animals and animal products, unpasteurized milk, ticks, inhalation of aerosolized infected dust. Sudden fever, chills, severe headache, malaise, myalgias, a non-productive cough, interstitial pneumonitis NOTE: There is no rash |
| Spirochetal Infections | Lyme disease, Leptospirosis, Relapsing fever, rate bite fever |
| Lyme Disease | Deer tick, FLS, Neuro (Bell's Palsey), Erythema Migrans(bull's eye rash), common in U.S. |
| Leptispirosis(Weil's Disease) | animal urine found fresh water, jaundice, signs of renal failure, hemorrhagic petechial rash, and aseptic meningitis. Conjunctivial suffusion = "injected" conjunctiva = "uniformly reddened" conjuntiva, FLS come and go |
| Spirochetes Microscopy | dark field examination |
| Relapsing fever (tick, recurrent, or famine) | fevers that come and go, from lice or ticks, N/V, jaundice |
| Rat bite fever | rodent bite or contaminated water/milk, FLS w/ red and dusky maculopapular rash on truck and extremities |
| Rat bite fever DOC | amoxicillin (DOC for animal bites) |
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