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Microbiology 3
First Aid: Microbiology 3
| Question | Answer |
|---|---|
| Patient presents with a red rash with central clearing that looks like an expanding "bull's eye". Diagnosis? | Lyme disease; borrelia burgdorferi |
| What is the treatment for lyme disease? | Tetracycline |
| Patient presents with painless chancre, if left untreated what further symptoms can be expected? | Condylomata lata and maculopapular rash (palms and soles) |
| What is the Argyll Robertson pupil and what is it pathognomonic for? | When the pupil constricts for accomodation but is nonreactive to light; pathognomonic for tertiary syphillis |
| What is the best test for treponemas? | FTA-ABS |
| AIDS patient presents with white patches in the mouth. Diagnosis? | Oral thrush or candidiasis; candida albicans |
| This dimorphic fungi is a mold in soil and spherule in tissue. | Coccidiomycosis |
| This organism is associated with bird or bat droppings. | Histoplasmosis |
| This mold with septate hyphae that branch at a V shape is a cause of allergic bronchopulmonary disease? | Aspergillosis; Aspergillus fumigatus |
| Heavily encapsulated yeast that stains w/ india ink? | Cryptococcus neoformans |
| This yeast causes diffuse interstitial pneumonia, most commonly in the immunosuppressed (HIV). | Pneumocystis carinii |
| This fungus is usually introduced by trauma, typically by a thorn (rose gardener's disease), causing local pustule or ulcer with nodules along draining lymphatics. | Sporothrix schenckii |
| This protozoa causes bloody diarrhea (dysentery). | Entamoeba histolytica; do not confuse with G. lamblia which causes watery diarrhea |
| Common cause of severe diarrhea in AIDS patients. | Cryptosporidium |
| What is the treatment for E. histolytica? | Metronidazole |
| What is the treatment for G. lamblia? | Metronidazole |
| What is the treatment for Toxoplasma? | Sulfadiazene + pyrimethamine |
| What is the treatment for Plasmodium? | Chloroquine, sulfadoxine + pyrimethamine, mefloquine, quinine |
| What is the treatment for trichomonas vaginalis? | Metronidazole |
| What is the treatment for trypanosoma cruzi? | Nifurtimox |
| This organism can cause brain abscess in HIV patients? | Toxoplasma |
| Patient presents with cyclic fever, headache, anemia, and splenomegaly. Diagnosis? | Malaria; p. falciparum is severe |
| Vaginitis caused by protozoa. Diagnosis? | Trichomonas vaginalis |
| These organisms found in undercooked pork have larvae that can cause mass lesions in the brain. | cystircercosis; Taenia solium |
| These organisms which use snails as a host, penetrate the skin and cause granulomas, fibrosis, and inflammation of spleen and liver. | Schistosoma |
| This organism found in undercooked fish can cause inflammation of the biliary tract? | Clonorchis sinensis |
| Larvae of this organism penetrate skin of feet leading to intestinal infection and can cause anemia. | Ancylostoma duodenale; hookworm (strongyloides stercoralis is similar but does not cause anemia) |
| This organism causes an intestinal infection and their eggs are visible in the feces. | Ascaris lumbricoides; giant roundworm |
| This organims causes an intestinal infection and causes anal pruritis (the scotch tape test) | Enterobius vermicularis; pinworm |
| What is the treatment of hookworm, pinworm, roundworm, and strongyloides? | All are treated by Mebendazole/pyrantel pamoate except strongyloides, which is treated with Ivermectin/thiabendazole |
| This organism transmitted by ingested dog feces can cause cysts in liver? | Echinococcus granulosus |
| This organism can lead to a B12 deficiency by absorbing the vitamin, but often requires many years before apparent. | Diphyllobothrium latum |
| This schistosoma is related to hematuria and bladder cancer. | Schistosoma haematobium |
| This schistosoma is related to portal hypertension | Schistosoma mansoni |
| What is the treatment for schistosoma infection? | Praziquantel |
| What is the treatment for taenia solium | Praziquantel/niclosamide; albendazole for cysircercosis |
| what is the treatment for Echinococcus granulosus? | Albendazole |
Created by:
rahjohnson
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