Nursing care of nausea and vomiting in pregnancy: Roy adaptation model.

Nursing theories and conceptual models need to be developed and used in practice for accumulation of nursing knowledge. The authors in this article explain the concepts and nursing process of the Roy adaptation model in light of an example with the nausea and vomiting of pregnancy. It is expected that the article will provide guidance for nurses who want to use the model while offering nursing care and conducting research.