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MICRO > Helminths (Exam #3) > Flashcards

Helminths (Exam #3) Flashcards

1
Q

What is the most common Helminth in the U.S.?

A

Enterobius vermicularis = Pinworm

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2
Q

What organism involves gravid female (with eggs) depositing eggs at perianal region?

A

Enterobius vermicularis = Pinworm

- Helminths

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3
Q

What organism involves pruritus ani?

A

Enterobius vermicularis = Pinworm

- Helminths

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4
Q

What organism involves diagnosis of cellophane test method?

A

Enterobius vermicularis = Pinworm

- Helminths

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5
Q

What are the two soil nematodes? What population are these most commonly seen in?

A

CHILDREN

  • Ascaris lumbricoides = Ascariasis (“large intestinal roundworm”)
  • Trichuris trichiura = Trichuriasis (“whipworm”)
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6
Q

What organism can cause blockage, Loeffler’s Syndrome (pulmonary)?

A

Ascaris lumbricoides = Ascariasis (“large intestinal roundworm”)
- Helminths

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7
Q

What organism is also called “large intestinal roundworm”?

A

Ascaris lumbricoides = Ascariasis

- Helminths

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8
Q

What organism is also called “whipworm”?

A

Trichuris trichiura = Trichuriasis

- Helminths

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9
Q

What organism involves “egg capsules”?

A

Trichuris trichiura = Trichuriasis (“whipworm”)

- Helminths

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10
Q

What organism involves painful passage of stool?

A

Trichuris trichiura = Trichuriasis (“whipworm”)

- Helminths

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11
Q

What organism feeds on blood of intestinal mucosa?

A

Hookworms (N. americanus, A. duodenale)

- Helminths

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12
Q

Which two Nematode (Helminth) organisms can penetrate skin?

A
  • Hookworms (N. americanus, A. duodenale)

- Strongyloides stercoralis = Strongyloidiasis (“threadworms”)

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13
Q

What organism involves blood-filled pruritic lesions (“ground itch”)? What other symptom may be seen?

A

Hookworms (N. americanus, A. duodenale)
- Helminths

+/- Anemia

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14
Q

Which Nematode (Helminth) organism is NOT immediately infectious? Why is this?

A

Hookworms (N. americanus, A. duodenale)
- Helminths

Eggs laid do not mature until in soil (have egg capsule)
- Once hatched, larvae can penetrate skin and infect human

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15
Q

What organism can multiply in the host (parasitic) or in soil (free living)?

A

Strongyloides stercoralis = Strongyloidiasis (“threadworms”)

- Helminths

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16
Q

What organism’s entrance to the human body can be visualized (this is used diagnostically)? What else is this organism capable of doing symptomatically?

A

Strongyloides stercoralis = Strongyloidiasis (“threadworms”)
- Helminths

Can autoinfect, leading to chronic infections

17
Q

If a patient has Strongyloides stercoralis = Strongyloidiasis (“threadworms”), what could possibly cause the infection to become life-threatening?

A

Cell-mediated immunity

18
Q

Of the two Tapeworms (Helminths), which is found in pork and which is found in beef?

A
  • Taenia solium = PORK

- Taenia saginata = BEEF

19
Q

What organism is leaf-like, flat, LARGE and hemaphroditic?

A

Trematodes (Flukes)

- Helminths

20
Q

What organism involves a scolex?

A

Tapeworms = T. solium, T. saginata

- Helminths

21
Q

Which Helminth organism has two intermediate hosts and one definitive host?

A

Tapeworms = T. solium, T. saginata

- Helminths

22
Q

With Tapeworms = T. solium, T. saginata, what condition can develop IF infected eggs are ingested by humans?

A

Cysticercosis

23
Q

What organism involves proglottids that contain infectious eggs and are released in feces?

A

Tapeworms = T. solium, T. saginata

- Helminths

24
Q

How does Diphyllobothrium latum = Diphyllobothriasis (Fish Tapeworm) differ from T. solium, T. saginata (Tapeworms)?

A

D. latum eggs are released SINGLY

- NOT in proglottids like T. solium, T. saginata (Tapeworms)

25
Q

What is another name for Diphyllobothrium latum = Diphyllobothriasis?

A

Fish Tapeworm

- Helminths

26
Q

What two signs/symptoms may present with Diphyllobothrium latum = Diphyllobothriasis (“Fish Tapeworm”)?

A
  • Vitamin B12 deficiency

- Anemia

MICRO (11 decks)

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