Medical MCQ-A 4 year old child presents with acute watery diarrhea and abdominal cramps. Stool microscopy reveals trophozoites with falling leaf motility. The etiological agent is?

A 4 year old child presents with acute watery diarrhea and abdominal cramps. Stool microscopy reveals trophozoites with falling leaf motility. The etiological agent is?

Entamoeba hisiolutics

Giardia lamblia

Trichomonas tenax

Balantidium coli

Question Category:

Microbiology

Correct Answer:

Giardia lamblia

Description:

The trophozoite is motile, with a slow oscillation about its long axis, which has been likened to the motion of a 'falling leaf.' It divides by longitudinal binary fission. It lives in the duodenum and upper pa of the jejunum attached by means of the sucking disc to the epithelial cells of the villi and crypts feeding by pinocytosis

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