Names of everyone involved including the nurse have been withheld.
The woman was admitted to Kandahar for palliative care in 2012, the same year the rest home started providing palliative care to terminally ill patients. She died several months later from lung cancer.
Prior to her death, the woman lost the ability to communicate.
Her daughter said in a complaint to the Health and Disability Commission that staff from Kandahar made her mother feel like a "drug seeker" and that she often had to wait for a staff change to receive an increased dose of morphine prescribed by her doctor. Her daughter had been concerned the ill woman suffered unnecessary pain in the days leading up to her death with one particular nurse refusing to administer morphine when the family asked, even though the doctor charted it.
The deputy commissioner also found Kandahar failed to retain sufficient records and didn't keep clear and adequate records of medication administration.
Ms Wall has recommended the Nursing Council of New Zealand conducts a review of one of the nurses in question.
She has also recommended the home reviews its policies and procedures regarding palliative care, amend its medication manual to reflect end-of-life medication administration issues and develop a new end-of-life care policy.
The resthome is also been ordered to audit training of all staff providing palliative care and that all nurses receive palliative care training and must provide the commissioner with an updated training programme cycle for nursing staff.
It has three months to complete the recommendations.