Well Known Fact
Now that you mention it, I remember calling a receptionist once to see if a medication that my daughter was taking was making her see double. "Oh no", said the receptionist, "There is no way that medication would ever do that, we've never had any report of that, it's perfectly safe."

This led to a round of visits to the medical doctor, an eye doctor, a specialist eye doctor who upon examining her sent her immediately to the ER where she endured a spinal tap (to see if she had Multiple Sclerosis), a Cat Scan (for possible brain tumor)and finally seeing the top neuro doctor there who declared her new medication had done this to her. Rare but not unknown.

I was not so much upset with the receptionist for not knowing; after all, it was a rare reaction, but I was upset with her for not referring the question to the doctor when she obviously didn't know what she was talking about.

My point? Sometimes receptionists think THEY ARE THE DOCTOR, lol.