Wall criticised the nurse for failing to start CPR urgently. She acknowledged the potato was unlikely to have been dislodged by chest compressions, but said starting CPR would still be considered reasonable care.
The HDC found the nurse should have moved the woman to the dining room floor rather than spend time getting her to another room - estimated to have caused a 15-30 second delay.
The nurse said she had moved the woman primarily because there was limited space in the dining room, and to improve access for ambulance staff.
The deputy commissioner recommended the nurse write an apology to the woman's family for breaching the Code - although she made it clear that the nurse following correct procedure would not be likely to have saved the woman's life.
She also recommended that the Nursing Council of New Zealand review the nurse's emergency response competency, and that the rest home develop a system to monitor whether non-clinical staff had basic life-support training. All staff involved in this event were to be sent to a full first aid/CPR Level 2 course.
The rest home has since developed a choking policy, which states if a patient is responsive, the staff member is to administer five back blows, alternating with five chest thrusts.
If the patient is unconscious the staff member is to continue with CPR until the ambulance arrives.