The Government has approved funding for a pay equity claim for nurses, with nurses, DHBS and the Ministry of Health urged to start negotiations straight away.
Nurses and midwives will strike Thursday with most elective surgeries across the region set to be delayed.
Lakes District Health Board contingency planners are making preparations following notices from both unions.
Members from nurses' union NZNO, which includes nurses and midwives, will strike for eight hours between 11am and 7pm.
The health board employs 44 midwives and 765 nurses, many of whom are union members. Anyone who will be affected by alterations to planned hospital care is being contacted.
Lakes DHB chief executive Nick Saville-Wood said the DHB will be able to maintain only minimal services during the strike. He said patient safety is the number one consideration in planning for the upcoming industrial action.
Tauranga and Whakatāne hospitals will only be open for emergency, essential services, and urgent medical care on Thursday.
Most non-essential services and elective surgery is being postponed.
In a media statement, the Bay of Plenty District Health Board said the effect of removing a large percentage of the nursing and midwifery workforce, even for a short time, was "hard to overstate".
Maternity care for women and their pēpi will be as normal.
Planned caesareans will be rescheduled while urgent caesareans will not be delayed.
