Two severely disabled people in residential care were sent home from hospital still seriously ill, with one readmitted within 24 hours, later dying in hospital.

Disability advocates and families fear vulnerable people are falling through the gaps in the health system because no-one wants to pick up the tab for their care.

The woman with multiple disabilities was taken to Tauranga Hospital's emergency department on April 6 because she was having trouble breathing.

New Zealand Health Group chief operating officer Veronica Manion says despite the pleas of her caregivers, she was sent back at 4.30am on April 7 by ambulance.

"She was readmitted within that 24-hour period. She subsequently passed away in hospital."

Two weeks later, a client from another facility was discharged from Wairarapa Hospital on April 19 even though the on-call nurse had strongly advised against it.

"He arrived at 9pm with an IV lure still in and his evening medications hadn't been given and he's an insulin-dependent diabetic," Veronica says.

His blood sugars were low and the provider's nurse had to seek advice from the hospital about the right dose to give him, she said.

The New Zealand Health Group had done internal reviews of both cases and was considering making complaints to Te Whatu Ora, says Veronica.

Unfortunately, they are not isolated cases, with emergency departments "over-flowing" everywhere, she says.

"I feel that because of their disability - and they're not always able to speak up for themselves - they're not always being made a priority.

"They're being discharged far too early and they're coming home very unwell."

She suspects in some cases hospital staff assumed residential care providers were better equipped to look after people.

"But in many cases they're not nurses, they're caregivers."

In a statement, Wairarapa Hospital's acute services manager, Gemma Askew, says no complaint has been received from a patient or a residential care provider regarding a premature discharge from the emergency department.

She admits, however, that the ED and wider hospital occupancy has been under strain.

"The demands on isolation spaces due to Covid-19 positive inpatients and challenges to timely discharge can have an impact on hospital flow that can result in higher ED occupancy."

Te Whatu Ora in Hauora a Toi Bay of Plenty Tauranga Hospital coordinator Julie Williams says due to patient confidentiality, it's unable to comment on individual cases.

However, at the date and time given, Tauranga Hospital had low occupancy and beds were available if required.

"As a general comment, patients who are brought to hospital via ambulance will first be assessed in the Emergency Department. A decision and plan will then be made for that patient's further management, based on clinical need, and this may or may not require a hospital admission."

-Ruth Hill/RNZ.