So we are down the rabbit hole of the credentials fallacy, no one can be creditable or have valid concerns / issues unless they have a MD or PhD?
We shouldn't treat the opinions of a CNA who might have had as few as 85 hours of education as "the opinions of a medical professional" - -that- is entirely valid. Their opinions can be credible, and they can have valid concerns, but they're not held higher because they have a cert or license or degree.