New figures show how the region's hospitals are struggling to meet emergency admission targets after one of the busiest months on record.
The Norfolk and Norwich University Hospital is the worst in the country with only 54.7pc of patients seen within the government's four-hour target window.
It comes after under-pressure doctors at the hospital were told last month to make the "least unsafe decision" when treating patients.
The hospital says emergency admissions have risen by a quarter over the past four years.
December was the fourth month in a row that the hospital recorded the recorded the worst results for A&E patient delays.
It says staff are working really hard to assess and treat patients as quickly as possible and the hospital is opening extra beds to help too.
The figures revealed today how all our hospitals fared last month at meeting the Government's target time for patients to be seen within four hours - the James Paget in Gorleston was the best performing.
- - Norfolk and Norwich Hospital - 54.7%
- - Princess Alexandra Hospital, Harlow - 68.2%
- - North West Anglia Foundation Trust - 68.4%
- - Queen Elizabeth Hospital, King's Lynn - 71.2%
- - Mid Essex Hospital Services NHS Trust - 73.8%
- - Southend University Hospital Foundation Trust - 73.8%
- - East and North Hertfordshire NHS Trust - 78.9%
- - Bedford Hospital NHS Foundation Trust - 79.3%
- - West Hertfordshire Hospitals NHS Trust - 79.4%
- - East Suffolk and North Essex NHS Foundation Trust - 82.4%
- - Milton Keynes University Hospital NHS Trust - 82.5%
- - Basildon and Thurrock University Hospitals NHS Foundation Trust - 83.5%
- - James Paget University Hospitals NHS Foundation Trust, Gorleston - 84.1%
Figures show the NHS experienced its busiest month on record in December with an unprecedented number of A&E attendances and ambulance call-outs.
Attendances at A&E throughout 2019 were up almost 5% on 2018, and rose 14.2% within three years, according to NHS England.