Throat cultures

I was wondering when your primary care doctor (Not your CF doctor) cultures your throat, let's say for Strep, do they ONLY look for the strep bacteria? Or if you had something else growing would it usually pop up on the culture? I was wondering if it was possible to miss other bacteria, if they only look for one specific type. Thank you.
Source: Cystic Fibrosis Teenagers and Young People Forum - Category: Respiratory Medicine Authors: Tags: Teenagers and Young People Source Type: forums