My daughter talked to me. She told me, but she wasn't sure what the nurse had told her (daughter has a comprehension/listening problem). I called the clinic and told them what my daughter had said. I even stated the assumed diagnosis. Nurse said she couldn't talk to me, but would gladly call my daughter again. That would have the same effect as repeating something LOUDER to someone who doesn't speak the language. Repeating and louder won't have any effect on comprehension.
Once clinic knows that child has talked to parent(s) information should be made available. I fully understand the need for confidentiality prior to child informing parents, but not after.