They were working with the HBDHB to "foster a collaborative approach to resolve the health and safety concerns of members" and ongoing meetings were taking place regarding the issues.
"As a result of the current concerns in the Mental Health Service, a Mental Health Nurses Forum has been established.
"It has been agreed it will be with NZNO and the DHB management to confirm the risk issues and assign responsibility. The risk management at the hospital is not at an acceptable level and must be improved immediately."
It is understood that since the incident, security has been increased to two people per shift and they were working on getting the patient in question "appropriately placed to better meet [their] needs straight away".
A Hawke's Bay District Health Board spokeswoman previously said it had launched an investigation into how the event occurred, and notified police.
Eising-Wolland said it was up to the nurse to decide whether they wanted to contact police or not.
"A person can be prosecuted, it just needs to be referred to the police and then they will decide."