Diagnosis of giardiasis typically involves a combination of clinical evaluation and laboratory testing. Healthcare providers may order stool tests to identify the presence of Giardia cysts or trophozoites. In some cases, enzyme-linked immunosorbent assay (ELISA) tests can be used to detect Giardia antigens in stool samples. Additionally, a direct fluorescent antibody (DFA) test may be utilized for more accurate detection.
