This story has been reproduced from the BBC website.
The Care Quality Commission (CQC) said standards in food & drink provision and patient dignity were not good enough.
The hospital expects CQC inspectors to return, unannounced, within a month.
Andrew Reed, chief executive, said: "That is the best way to give assurances to people that we have done the things that we need to do."
Following the CQC Dignity & Nutrition For Older People review which came out in May, the hospital said it has introduced measures to ensure patients have got call bells and drinks within reach at all times, that they have help with food and toileting and more flexible visiting times and that a complex care ward has been refurbished for patients with dementia.