Answer: Analysis
Step-by-step explanation:
Analysis is the set of experiment and research studies which is based upon the examination of the observations and data obtain after the experimental trial. These are compared with appropriate standards which are based on previous research and experiments. This process helps in development of the results.
The nurse here is using the analysis. This is because of the fact that the nurse reviews the medical record and comparing it with the abnormal lab result which can help in development of valid result and conclusion.