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Microbiology 5:
Step 1 Review: Helminths
36
Biology
Graduate
12/23/2007

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Cards

Term
What chief complaint for Ascaris lumbricoides
Definition
Intestinal obstruction by adults
Term
Where does A. lumbricoides get transported to?
Definition

1.  Invades the intestinal wall

2.  Enters the blood stream

3.  Transported to the lungs 

Term
How does A. lumbricoides replicate when it's in the lungs?
Definition
Goes from the trachea to the pharynx where it is swallowed and passed into the SI
Term
How do you diagnosis A. lumbricoides?
Definition
Rough surface egg in stool
Term
What drugs do you use to treat A. lumbricoides?
Definition

Mebendazole

Albendazole

Pyrantel 

Term
Name the 4 Nematodes?
Definition

Trichuris trichiura

Ascaris lumbricoides

Toxocara canis

Necator americanus 

Term
What does Trichuris trichiura cause?
Definition

1.  Colitis

2.  Chronic diarrhea w/ blood & mucus 

Term
Where in the GI tract would you find T. trichiura?
Definition
Distal GI
Term
How wolud you treat T. trichiura
Definition
Mebendazole & Albendazole
Term
What are the symptoms of Toxocara canis?
Definition

1.  Eosinophilia

2.  Fever

3.  Hepatospleenmegaly 

Term
What is Ocular Larva Migrans?
Definition
Invasion of the eye by Toxocara larvae
Term
How eggs from T. canis get from the soil into humans?
Definition

1.  Ingested by dogs/cats

2.  Move into deep tissues

3.  Eggs get passed by the animal

4.  Ingested by humans 

Term
How dou you treat T. canis?
Definition
Albendazole & Mebendazole
Term
What does Necator americanus cause?
Definition
Anemia
Term
In what population are you more likely to find N. americanus?
Definition
Farmers, miners & children
Term
How does Necator americanus enter the body?
Definition
Barefeet
Term
How do you treat N. americanus
Definition

1.  Iron and folic acid for the anemia

2.  Mebendazole and  Albendazole

Term
Name the 5 Cestodes
Definition

1.  Taenia solium

2.  Taenia saginata

3.  Diphyllobothrium latum

4.  Hymenolepsis nana

5.  Echinocuccus granulosus 

Term
How would you contract T. solium?
Definition
Uncooked pork meat
Term
Where in the tapeworm are the eggs found?
Definition
Gravid proglottids
Term
What does T. solium cause?
Definition
Blindness & Neurological manifestations like headaches & seizures
Term
How do you treat T. solium
Definition
Parziquantel or Albendazole
Term
How would you get Taenia saginata?
Definition
Uncooked beef
Term
What are the symtpoms of T. saginata?
Definition
Malnutrition
Term
How would you treat T. saginata?
Definition
Parziquantel or Albendazole
Term
How would you get Diphyllobthrium latum?
Definition
Uncooked fish
Term
What are the symptoms of a D. latum infection?
Definition
Vit B12 deficency leading to anemia
Term
What are the symptoms of Hymenlepsis nana?
Definition
Abdominal discomfort, nausea & vomiting
Term
What's the host for H. nana?
Definition
No host, repliactes and matures in humans
Term
Hows at risk for H. nana
Definition
Children
Term
How would you treat H. nana
Definition
Parziquantel
Term
How does Echinocuccus granulosus present?
Definition

Hydatid cyst:

Liver & lung leading to calcification

Liver:  Abdominal pain, palpable liver & biliary obstruction 

Term
How would you treat E. granulosus?
Definition
Parziquantel or Albendazole
Term
What does Schistosoma species cause?
Definition

Schistosomiasis:

 Skin rash at site of penetration

 

Kattama fever:

1.  Intense itching, fever, hives

2.  Weight loss

3.  Portal hypertension 

Term
What is the intermediate host of Schistomsome?
Definition
Snails
Term
How is Schistosoma treated?
Definition
Praziquantel
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