Parasitology Diagnostic Methods

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Questions and Answers

What is the diagnostic stage of Trypanosoma spp?

  • Trypomastigote (correct)
  • Promastigote
  • Amastigote
  • Epimastigote

What is the location of the kinetoplast in trypomastigotes?

  • Anteriorly located
  • Laterally located
  • Posteriorly located (correct)
  • Centrally located

How is Trypanosoma cruzi transmitted to human hosts?

  • Through direct contact with an infected animal
  • When the feces of the bug containing the trypomastigote is deposited near the bite site (correct)
  • Through contaminated food and water
  • Through the bite of the Reduvid bug

What is the primary method of prevention and control for Trypanosoma spp?

<p>Use of nets, window screens, protective clothing, and insect repellents to avoid insect vector (A)</p> Signup and view all the answers

What is the common reservoir host for Trypanosoma cruzi?

<p>All of the above (D)</p> Signup and view all the answers

What is the treatment option for Trypanosoma spp that may develop resistance?

<p>Sodium stibogluconate (C)</p> Signup and view all the answers

What is the purpose of the Cellophane tape or Scotch Tape Preparation?

<p>To detect the presence of pinworm, Enterobius vermicularis (B)</p> Signup and view all the answers

What is the most common symptom of Visceral Leishmaniasis or Kala-azar?

<p>Intermittent fever (D)</p> Signup and view all the answers

What type of blood smear is used to identify the species of a parasite?

<p>Thin blood smear (C)</p> Signup and view all the answers

What is the purpose of examining Cerebrospinal Fluid?

<p>To detect the presence of amebic infections (C)</p> Signup and view all the answers

What is the vector responsible for transmitting Leishmania tropica complex?

<p>Phlebotomus sandfly (A)</p> Signup and view all the answers

What is the primary location of the disease caused by Leishmania tropica complex?

<p>Lymphoid tissue of the skin (D)</p> Signup and view all the answers

What is the term for the stage of a parasite that enters the host?

<p>Infective Stage (D)</p> Signup and view all the answers

What is the purpose of collecting tissue and biopsy specimens?

<p>To detect the presence of Leishmania, Toxoplasma gondii, and Trichinella spiralis (D)</p> Signup and view all the answers

What is the primary diagnostic test for Visceral Leishmaniasis?

<p>Giemsa stained blood smear specimen (D)</p> Signup and view all the answers

What is the primary treatment for Visceral Leishmaniasis?

<p>Amphotericin B (Ambisome) (B)</p> Signup and view all the answers

What is the term for the process by which trophozoites differentiate into cyst forms?

<p>Encystation (A)</p> Signup and view all the answers

What is the characteristic of the initial lesion of Old World Cutaneous Leishmaniasis?

<p>A small, pruritic red papule (C)</p> Signup and view all the answers

What is the purpose of collecting Genitourinary Secretions?

<p>To detect the presence of Schistosoma haematobium and Trichomonas vaginalis (B)</p> Signup and view all the answers

What is a characteristic of protozoa?

<p>They are single-celled eukaryotic organisms (D)</p> Signup and view all the answers

What is the common name of the disease caused by Leishmania tropica complex?

<p>Baghdad or Delhi Boil (B)</p> Signup and view all the answers

What is the purpose of using insect repellents in prevention and control of Leishmaniasis?

<p>To reduce the risk of vector transmission (D)</p> Signup and view all the answers

What is the primary mode of acquisition for Naegleria infection?

<p>Through transnasal contact with contaminated water while swimming (C)</p> Signup and view all the answers

What is the typical clinical presentation of Naegleria infection in patients?

<p>Asymptomatic Infection with colonization of the nasal passages (B)</p> Signup and view all the answers

How does Naegleria amoeba enter the central nervous system?

<p>Through the nasal mucosa and cribriform plate (D)</p> Signup and view all the answers

What is the typical outcome of untreated Primary Amoebic Meningoencephalitis (PAM)?

<p>Death within one week after symptoms appear (A)</p> Signup and view all the answers

What is the purpose of adequate chlorination of swimming pools and hot tubs?

<p>To prevent Naegleria infection (C)</p> Signup and view all the answers

What is the primary laboratory diagnosis for Naegleria infection?

<p>Finding of ameboid trophozoites in the CSF (C)</p> Signup and view all the answers

What is the name of the disease caused by Trypanosoma Cruzi?

<p>Chagas Disease (C)</p> Signup and view all the answers

What is the sign characterized by unilateral swelling of the eyelid with conjunctivitis?

<p>Romana's sign (B)</p> Signup and view all the answers

What is the drug of choice for treating Chagas Disease?

<p>Benznidazole (B)</p> Signup and view all the answers

What is the name of the vector that transmits Trypanosoma Brucei?

<p>TseTse fly (D)</p> Signup and view all the answers

What is the name of the disease caused by Trypanosoma Brucei?

<p>African Sleeping Sickness (C)</p> Signup and view all the answers

What is the characteristic manifestation of T. Brucei Rhodesiense?

<p>More virulent (B)</p> Signup and view all the answers

What is the name of the sign characterized by cervical lymphadenopathy?

<p>Winterbottom's sign (B)</p> Signup and view all the answers

What is the usual cause of death in untreated African Sleeping Sickness?

<p>All of the above (D)</p> Signup and view all the answers

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