Does thrush show up on a rapid strep test?

No, thrush will not show up on a rapid strep test.

Rapid strep tests are used to quickly detect the presence of group A streptococcus (GAS) bacteria, which cause strep throat and other infections. Thrush is caused by a different type of fungus called Candida, which does not cause a sore throat. A different test is required to diagnose thrush.