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19 Cards in this Set
- Front
- Back
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What type of infection is diphyllobothriasis?
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A fish tapeworm
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What is the name of the organism that causes diphyllobothriasis?
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D latum
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Where can this be found?
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Any freshwater lake and river in the Northern Hemisphere (Europe, Former Soviet Union, North America, Asia), and in Uganda and Chili
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Where specifically have there been US reports?
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In the Great Lakes
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In regards to the pathophysiology, where does the embryo live?
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In crustaceans
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How does the fish become infected?
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By eating the larvae of the crustaceans
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How does the human become infected?
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By eating raw or undercooked fish
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How many eggs are discharged daily from the proglottids?
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1,000,000,000 per day per worm!
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How long can these tapeworms live?
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up to 10 years
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What is the most common presentation?
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Assymptomatic
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What are other signs and symptoms when a person is not assymptomatic?
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Fatigue, diarrhea, dizzines, weakness (rare), numbness of extremities, sensation of hunger, pruritis ani
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Why does the pt have symptoms of fatigue, dizziness, numbness, and weakness?
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Because D latum has a high affinity for vitamin B-12, and tends to use of the host's supply
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What other B-12 deficiency condition might this infection resemble?
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megaloblastic anemia
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What might the PE reveal?
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Pallor, Glossitis, dyspnea, tachycardia, weakness, hypesthesia, parasthesias, disturbances of movement and coordination
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What will the CBC show?
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Low H & H, high MCV, and Eosinophilia
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What other deficiencies will lab values show?
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Low B-12 and Folate
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What diagnostic lab is definitive for diphyllobothriasis?
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Positive Stool for O & P
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What is the treatment for Diphyllobthriasis?
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Praziquantel (Biltricide), and vitamin supplementation in severe cases
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What are the catch phrases from the case study?
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1. Fatigue, diarrhea, and numbness of extremities, 2. immigrant from Russia (had inadequate medical care), 3. Tachycardia and decreased DTR's, 4. CBC showing megaloblastic anemia, 5. Positive stool for O & P
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