The normal value for culture throat swab test is the growth depends on the infecting organism. The result is unisex for all age groups.
Throat culture refers to the growth and isolation of a micro-organism from a specimen taken from the throat. The results guide appropriate therapy in infectious and inflammatory diseases of the throat.
A positive rapid strep test indicates the presence of group A streptococci, the bacteria that cause strep throat.
A negative rapid test indicates that the affected person probably does not have strep throat, but a throat culture may be performed for confirmation, especially among children and adolescents.
If the throat culture is positive for group A streptococci, then the person tested does have strep throat.
In rare cases, pharyngitis may be caused by group C or group G streptococci. These organisms will not cause a positive rapid test but can be detected by culture.
If the culture is negative, then it is most likely that the sore throat is due to a viral infection that will resolve on its own.