"test" in inglés with examples - Collocation dictionary inglés
- An antigen test may be done if a person's medical history and symptoms suggest giardiasis.
- Older antigen tests detect the surface Lancefield group A carbohydrate.
- However, the likelihood of a positive antigen test depends on the number of adult female worms present.
- Even with female worms, an antigen test will usually only become positive seven to eight months after infection.
- The antibody test is more sensitive than the antigen test, but it does not provide direct evidence of adult infection.
- The antigen test can also be used to monitor the effectiveness of drugs.
- An antigen test also may be used to screen people who are at high risk for having giardiasis.
- Known as the prostatic-specific antigen test, it costs £15 and is currently used by about 20% of GPs.
- Most antibody and antigen tests are not very helpful because they cannot tell the difference between current and past infection.
- To know for sure, you need a culture or rapid antigen test, which takes less than 20 minutes and can be done while you wait.
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