Billed as a state-of-the-art facility, Northern Beaches Hospital had so few ultrasound machines in operating theatres, anaesthetists began hiding them to ensure they had access, doctors have claimed.

In other fresh allegations about the troubled Sydney public hospital built and run by the private sector, senior clinicians have described dangerously low junior doctor staffing numbers, inadequate supervision of registrars and equipment fails.

Nephrologist Dr Patrick Coleman said he had warned management there were not enough junior doctors on the payroll, ahead of its opening in 2018.

“We were able to predict before the hospital opened some of the issues that were going to arise,” Dr Coleman told the ABC’s 7.30.