Parasitology: Amebic Infection Study
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Questions and Answers

In patients infected with Balantidium coli, which stool type is more likely to contain trophozoites?

  • Watery stools
  • Loose stools (correct)
  • Formed stools
  • Bloody stools

What is primarily used to diagnose Balantidium coli infections?

  • Blood tests
  • X-rays
  • Sigmoidoscopy material (correct)
  • Urine tests

Which organ is NOT mentioned as a possible site of invasion by Balantidium coli?

  • Urogenital tract
  • Brain (correct)
  • Liver
  • Lungs

Which symptom is characteristic of chronic Balantidium coli infections?

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

What is the main method for detecting Balantidium coli cysts in suspected cases?

<p>Examination of stool specimens (B)</p> Signup and view all the answers

What is the characteristic of the trophozoite stage of Entamoeba coli?

<p>Exhibits sluggish, nonprogressive motility (A)</p> Signup and view all the answers

How can the nuclear structures of the Entamoeba coli trophozoite be best observed?

<p>The nuclear structures can only be observed in stained preparations (D)</p> Signup and view all the answers

Which of the following is a distinguishing feature of the Entamoeba coli cyst?

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

How does the life cycle of Entamoeba coli compare to that of Entamoeba histolytica?

<p>The life cycle of E. coli is simpler and similar to that of E. histolytica (A)</p> Signup and view all the answers

What is the primary mode of transmission for Entamoeba coli infections?

<p>Ingestion of contaminated food or water (D)</p> Signup and view all the answers

What are the typical clinical symptoms associated with Entamoeba coli infections?

<p>Asymptomatic in most cases (D)</p> Signup and view all the answers

Which of the following techniques is commonly used for the laboratory diagnosis of Entamoeba histolytica infection?

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

Which of the following is a characteristic of the Entamoeba histolytica cyst?

<p>It is the infective stage in the life cycle (C)</p> Signup and view all the answers

What is a characteristic clinical symptom of amebic dysentery caused by Entamoeba histolytica?

<p>Frequent, loose stools with blood and mucus (C)</p> Signup and view all the answers

Which stage of the Entamoeba histolytica life cycle is responsible for the formation of liver abscesses?

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

What is the purpose of encystation in the life cycle of Entamoeba histolytica?

<p>To facilitate transmission to a new host (B)</p> Signup and view all the answers

Which of the following statements about Entamoeba histolytica is true?

<p>It is transmitted through contaminated water or food (A)</p> Signup and view all the answers

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