What is the primary function of a code of ethics?

Use of systems theory.
Neuman's Health-Care Systems Model is based on the principles of systems theory. The model views individuals as open systems interacting with their environment. Health, illness, and wellness are influenced by dynamic interactions between the client and environmental stressors. This systems-based approach helps nurses understand the holistic nature of clients and their responses to stressors.

Behavior is the key to preventing illness.
This statement does not accurately represent Neuman's Health-Care Systems Model. While behavior and lifestyle choices can influence health, Neuman's model primarily emphasizes the dynamic interactions between individuals and their environment, considering stressors and their impact on the client's stability and well-being.

Nurse-centered rather than client-centered.
Neuman's model is client-centered. It focuses on the client's responses to environmental stressors and aims to assist clients in maintaining their optimal wellness within the context of their environment. It is not nurse-centered; instead, it empowers clients to actively participate in their own care.

Alteration of environmental stressors leads to health.
While addressing environmental stressors is a component of Neuman's model, it does not directly state that altering these stressors leads to health. The model emphasizes understanding the client's response to stressors and helping them achieve stability despite these stressors.

It can be processed and stored for up to ten years: The storage duration of recovered tissue depends on the specific type of tissue and the storage methods. While some tissues can be stored for extended periods, the statement is overly generalized and may not apply to all types of tissue.

Recovered pediatric heart valves can be used in the elderly: This statement is true. Heart valves from pediatric donors can often be used in elderly patients. The size and quality of the valves are important factors, and pediatric valves can be resized for transplantation into older recipients.

A transplanted kidney must be replaced every year: This statement is false. Kidney transplants are intended to be permanent solutions. While there can be complications or issues that might require medical attention, replacing the kidney every year is not a standard or necessary practice.

Because the cause of death of the donor is known, testing for disease is not necessary: This statement is false. Even if the cause of death is known, rigorous testing for diseases, especially communicable diseases, is essential to ensure the safety of the transplant recipient. Testing helps prevent the transmission of infections from the donor to the recipient.