The Chief of Nursing in Tonga says 70 percent of nurses are yet to reach the national professional standard.
'Amelia Tu'ipulotu told Radio Tonga a survey showed an urgent need to improve nursing standards.
Dr Tu'ipulotu said they were currently reviewing the Nurse Act, particularly around the code of conduct and code of ethics.
She said nurses should ensure they work according to the Nursing Ethics and Code of Conduct.
Dr Tu'ipulotu said this was not only to save lives but to also treat the patients with care and love and help promote good health.
More than 300 nurses work at the Ministry of Health.