Opisthorchiasis (Opisthorchis felineus) IgM antibodies
Detects IgM antibodies to Opisthorchis felineus — cat/hepatic fluke affecting liver bile ducts, gallbladder, and pancreas. IgM appears earlier than IgG and may help suspect early stage, especially with symptoms shortly after river fish consumption.
Note: IgM test is always evaluated together with clinical picture and often requires confirmation by other methods.
Infection routes: river fish (raw, lightly salted, poorly fried).
Recommended for:
- river fish enthusiasts;
- acute symptom onset.
Biomaterial: Venous blood
- Draw blood fasting (8-12 hours without food)
- Water is permitted
- Exclude fatty food and alcohol 24 hours before
- No smoking 30 minutes before
Medications: If taking antiparasitic drugs, hormonal drugs, or immunosuppressants — inform physician; dose adjustment is usually not required unless directed by physician
- Suspected recent infection;
- allergic reactions, eosinophilia;
- symptoms after consuming river fish.
Negative IgM — early stage unlikely.
Positive IgM — possible recent infection.
At positive result: infectious disease specialist/parasitologist and gastroenterologist consultation.
Self-treatment not recommended.
Result on the day of the request
