"The question in my mind initially was why not just tell her that to begin with."
Because she didn't want to force the doctor to have to spend ten minutes of her valuable time telling the patient the exact same thing the tech has already told her. "Not serious; come in before noon or go to the emergency clinic."
In a retail situation, calling the manager to deal with this would have been fine. This is not a retail situation.
Vet techs are the same thing as nurses. They are trusted by the doctors to provide relevant information, from both pets in the hospital, and from their owners on the phone. They DO know what is normal post-surgical behavior.
And they deal with an extraordinary number of people who panic unnecessarily.
How would you like to wait in your own doctor's office for two hours, because the doc is on the phone explaining over and over, to one overly anxious person after another, what their office hours are and where the after-hours clinic or emergency room is located?
You'd resent that, wouldn't you? How do you think the doctor feels?
Rooroo, who tries to be a reasonable patient and/or owner