The government has ordered a review of physician associates (PA) and anaesthesia associates (AA) in England after mounting concern about their use in the NHS.
The number of PAs and AAs, who help doctors, are in the process of being rapidly expanded.
But the British Medical Association has voiced concerns they are being asked to do tasks they are not meant to and the lines with doctors are getting blurred.
Announcing the review, Health Secretary Wes Streeting said there were legitimate concerns that needed looking at but he also criticised the "toxic nature of the debate", saying it had left PAs feeling demoralised.