Parasites/Fungi US Medical PG Flashcards - Medical Study Cards
Master Parasites/Fungi with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Parasites/Fungi Flashcard Deck - 10 Cards
Flashcard 1: Clinical presentation and treatment of Ancylostoma duodenale/Necator americanus (hookworm) infection?
Answer: Intestinal infection causing iron deficiency anemia; treated with bendazoles or pyrantel pamoate.
Extra: Transmission: Larvae (filariform) penetrate the skin (usually through bare feet). Diagnosis: Eggs in stool. Pathogenesis: Hookworms suck blood from the intestinal wall.
Flashcard 2: Common name for Dracunculus medinensis?
Answer: Guinea worm
Extra: Transmission: Drinking water containing copepods (water fleas) with L3 larvae.
Clinical: Skin inflammation and ulceration (usually on lower limbs).
Treatment: Slow physical extraction of the worm by winding it around a stick.
Flashcard 3: What are the key clinical features and treatment associated with Onchocerca volvulus?
Answer: River blindness, Ivermectin, Female blackfly bite
Extra: - Disease: River blindness (Onchocerciasis)
- Vector: Female blackfly (Simulium)
- Treatment: Ivermectin (Mnemonic: Iver-mectin for River blindness)
- Clinical: Skin nodules, pruritic dermatitis, and blindness due to microfilariae in the eye.
Flashcard 4: Loa loa is also known as?
Answer: African eye worm (Loiasis)
Extra: • Transmission: Chrysops (deer fly, horse fly, mango fly)
• Clinical features: Calabar swellings (subcutaneous edema), worm in conjunctiva
• Treatment: Diethylcarbamazine (DEC)
Flashcard 5: What condition is caused by Wuchereria bancrofti?
Answer: Elephantiasis (Lymphatic filariasis) diagnosed via nighttime blood smear; Rx with Diethylcarbamazine (DEC)
Extra: Vector: Female Culex mosquito (primarily). Symptoms: Lymphedema, elephantiasis, tropical pulmonary eosinophilia. Diagnosis: Microfilariae in peripheral blood (nocturnal periodicity).
Flashcard 6: What is the primary clinical manifestation of <i>Toxocara canis</i> infection in humans?
Answer: Visceral larva migrans (VLM) / Ocular larva migrans (OLM)
Extra: <b>Definitive host:</b> Dogs (humans are incidental hosts)<br><b>Transmission:</b> Ingestion of soil or food contaminated with eggs<br><b>Treatment:</b> Albendazole or Mebendazole
Flashcard 7: Key features of Leishmania donovani (Vector, Reservoir, Infective/Diagnostic stages)
Answer: Vector: Sandfly (Phlebotomus)
Reservoir: Humans (Indian), Dogs (Mediterranean)
Infective stage: Promastigote
Diagnostic stage: Amastigote (LD bodies)
Extra: Leishmania donovani causes visceral leishmaniasis (Kala-azar). It is characterized by the pentad of: fever, hepatosplenomegaly, pancytopenia, lymphadenopathy, and hypergammaglobulinemia.
Treatment: Liposomal Amphotericin B (DOC), Miltefosine.
Flashcard 8: What is the classic clinical triad of visceral leishmaniasis?
Answer: Spiking fevers, hepatosplenomegaly, and pancytopenia.
Extra: Drug of choice: Sodium stibogluconate (though Amphotericin B is now often preferred in many regions). This presentation specifically describes Visceral Leishmaniasis (Kala-azar).
Flashcard 9: Clinical features, diagnosis and treatment of Enterobius vermicularis (pinworm)?
Answer: Anal pruritus, Scotch tape test, bendazoles/pyrantel pamoate
Extra: - Clinical image: Intestinal infection causing perianal itching (nocturnal).
- Diagnosis: Scotch Tape test (microscopic identification of eggs).
- Treatment: Bendazoles or pyrantel pamoate (treat the whole family to prevent reinfection).
- Transmission: Fecal-oral.
Flashcard 10: Key features of Ascaris lumbricoides?
Answer: Most common helminthic infection worldwide, causing intestinal obstruction and Loeffler syndrome. treatment: Albendazole/Mebendazole.
Extra: Transmission: Fecal-oral (ingestion of eggs in contaminated soil/food).
Diagnosis: Ovoid eggs with thick, mamillated coat in stool.
Treatment: Bendazoles or pyrantel pamoate.
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