Specific diagnosis of ascaris is made by -a) Adult worm in stool b) Egg detectionc) Antigen detectiond) Antibody detectione) Skin test

Laboratory diagnosis of Ascariasis Parasitic diagnosis: Demonstration of characteristic Ascaris eggs in the stool: Eggs are passed in large numbers. Concentration of stool by Salt floatation and Formalin-ether method- light infections Demonstration of egg in bile (duodenal intubation) Demonstration of adult worm in stool/ vomitus- after treatment with antihelminthics. Demonstration of larvae in gastric aspirate, sputum or bronchial aspirates – pulmonary infections Serodiagnosis- In case extraintestinal Ascarisis Antibody detection by Microprecipitation on the larvae Indirect hemagglutination test Immunofluorescent antibody test.