Evaluation and analysis of the Modified Finnegan Scoring System for assessment of neonatal abstinence syndrome.

Objective: The Finnegan Neonatal Abstinence Scoring System (FNASS) is the most commonly used scoring system for neonatal abstinence syndrome (NAS) both in its original and modified versions, despite challenges related to tool length and observer bias. The purpose of this study was to determine the most frequent symptoms of NAS that led to score elevation and prompted initiation of drug therapy on the Modified Finnegan (MF). We also sought to identify vital sign changes associated with score elevation.