Final answer:
The abstract is the part of a research article that provides a concise summary, allowing quick determination of the study's relevance for a nurse researching oral care protocols to reduce the incidence of ventilator-associated pneumonia.
Step-by-step explanation:
The section of a research article that allows a nurse to quickly determine if the study is relevant without having to read the entire article is the abstract. The abstract summarizes the study, including the background, the methods, the results, and the conclusions. It is typically concise, providing critical information in around 100 to 250 words. By reading the abstract, the nurse can decide whether the full article is worth reading for further details on oral care protocols to reduce the incidence of ventilator-associated pneumonia.