When using the microscope, we need to look for eggs in the feces rather than the adults.

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Multiple Choice

When using the microscope, we need to look for eggs in the feces rather than the adults.

In fecal parasite exams, the stage you look for in the sample is the egg because many intestinal parasites shed eggs into the feces, while adults stay in the GI tract and aren’t typically present in the stool. Eggs are excreted in large numbers and can be concentrated and visualized with standard techniques like flotation, making them the most reliable indicator of infection on routine microscope slides. Some parasites may shed larvae or oocysts instead, but those require different methods or specific stains, whereas eggs are the common target for ordinary fecal microscopy.

In fecal parasite exams, the stage you look for in the sample is the egg because many intestinal parasites shed eggs into the feces, while adults stay in the GI tract and aren’t typically present in the stool. Eggs are excreted in large numbers and can be concentrated and visualized with standard techniques like flotation, making them the most reliable indicator of infection on routine microscope slides. Some parasites may shed larvae or oocysts instead, but those require different methods or specific stains, whereas eggs are the common target for ordinary fecal microscopy.

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