Exam 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Steps of malarial paroxsym | asymptomatic incubation period, RBC rupture, 10-15 min chills, 2-6 hour fever, post fever sweating and fatigue, repeat every x hours
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| What is a thick smear used for | detect infection
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| what is a thin smear used for | diagnose species
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| What is the infective stage in humans for plasmodium species | sporozoite
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| After complete clearing of RBC infection due to hypnozoites | Relapse (P. vivax and P. ovale)
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| Some parasites still left in blood after it was thought to be gone | Recrudescence (occurs in all four species)
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| Species with 48 hour paroxysm length | P. ovale and p. vivax
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| Species with 72 hour paroxysm length | P. malariae
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| Species with 36-48 hour paroxysm length | P. Falciparum
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| What kind of symptoms occur with plasmodium species | flu-like
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| Which plasmodium species is most harmful | P. falciparum, brain, kidney and liver frequently involved
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| Which plasmodium species infects young/immature cells | P. vivax and P.ovale
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| Which plasmodium species infects only mature cells | P. malariae
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| Which plasmodium species infects all ages of cells | P. falciparum
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| What is the vector for the plasmodium species | mosquito (spp. Anopheles)
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| Which species of plasmodium is characterized by a rosette arrangement of merozoites? | Plasmodium ovale
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| Which species of plasmodium is characterized by a band trophozoite? | Plasmodium malariae
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| Which plasmodium species is considered "lively" | Plasmodium vivax
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| Similarities of the miscellaneous parasites | obligate intracellular, single-celled, protozoans, non-flagellated, many have oocyst stages
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| Babesia spp. specimen | blood
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| Isospora belli specimen | feces, duodenal contents
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| Toxoplasma gondii | blood (csf)
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| Cryptosporidium parvum | Stool
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| Microsporidium | Serum or cell cultures
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| Pneumocystis | Bronchoalveolar lavage, tracheobronchial aspirate
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| Sarcocystis spp. | Stool
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| Which species cyst embeds in muscle tissue | Sarcocystis
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| Which species embeds in cardiac muscle tissue | Toxoplasma gondii
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| Which spp. trophs form a maltese cross? | Babesia
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| Commonalities among the trematodes | Known as "flukes", complex life cycle, most have mollusk (snail) intermediate host, pass through many life stages (egg, larva, adult worm)
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| Infects intestine, liver or lungs | Organ flukes
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| infects blood vessels around intestines or bladder | Blood flukes
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| Hermaphrodites | Organ flukes
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| Dioecious (need male and female) | Blood flukes
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| Foodborne | Organ flukes
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| Infect by burrowing through skin | blood flukes
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| 2 sporocyst with 4 sporozoites | Isospora belli, Sacrocystis
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| no sporocysts but 4 sporozoites | cryptosporidium parvum
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| Crescent-Shaped forms | tachyzoites in toxoplasma gondii
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| Crescent-shaped forms enclosed in cyst | bradyzoites in cyst of toxoplasma gondii
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| cyst has 4-8 nuclei | pneumocystis jiroveci
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| Schistosoma spp. with prominent large lateral spine | mansoni
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| Schistosoma spp. with small lateral spine | japonicum
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| Schistosoma spp. with large prominent terminal spine | haematobium
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| Which schistosoma spp. is can eggs be found in the urine | haematobium
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| Beef or pork tapeworm | Taenia saginata and solium
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| Rat tapeworm | Hymenolepis diminuta
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| Dwarf tapeworm | Hymenolepis nana
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| Dog or cat tapeworm | Dipylidium caninum
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| Fish tapeworm | Diphyllobothrium latum
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| Hydatid disease | Echinococcus granulosus
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| Causes fatty loose stools | Isospora belli
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