O&P

Definition

O&P (Ova and Parasite) test is a diagnostic procedure used to detect parasitic infections in the gastrointestinal tract by examining stool samples for the presence of eggs (ova) and parasites. It is commonly used to diagnose infections caused by protozoa and helminths.

5 Must Know Facts For Your Next Test

1. The O&P test requires multiple stool samples collected over several days to increase detection accuracy.
2. Common protozoan parasites detected by the O&P test include Giardia, Entamoeba histolytica, and Cryptosporidium.
3. Stool preservatives like formalin are often used to preserve the integrity of samples during transportation.
4. Microscopic examination is essential for identifying specific ova and parasites in stool samples.
5. Proper sample collection and handling are crucial to avoid contamination that could lead to false results.

Review Questions

• What types of infections can be diagnosed using an O&P test?
• Why is it necessary to collect multiple stool samples for an O&P test?
• Name at least two protozoan parasites commonly identified through an O&P test.

Related terms

Giardiasis: An infection caused by the protozoan parasite Giardia lamblia, often resulting in diarrhea and abdominal discomfort.

Amebiasis: A parasitic infection of the intestines caused by Entamoeba histolytica, which can lead to severe dysentery.

Cryptosporidiosis: An infection caused by Cryptosporidium species, leading to watery diarrhea and gastrointestinal distress.