Final answer:
The practice of documenting a client's response to medication in nursing was pioneered by Florence Nightingale. Her meticulous record-keeping during the Crimean War led to significant healthcare reforms and the development of modern nursing practices.
Step-by-step explanation:
The nurse is documenting the client's response to a medication. This action reflects a practice that was started by Florence Nightingale, who is a key figure in nursing's history. Nightingale is renowned for her work during the Crimean War, where she kept meticulous records regarding the causes of illness and death amongst soldiers. Her revolutionary approaches to sanitation and medical care reform were driven by her detailed recordkeeping and her analysis of healthcare data, which became fundamental to the science of epidemiology.
Florence Nightingale's contributions to nursing include the importance of sanitary conditions in healthcare settings and the systemization of patient care through thorough documentation and statistical analysis. Therefore, the correct answer to the provided question is option 3) Florence Nightingale.