21-item Finnegan Neonatal Abstinence Scoring System

21-symptom FNAST for longitudinal assessment of neonatal withdrawal signs; descriptive output without treatment instructions.

What is 21-item Finnegan Neonatal Abstinence Scoring System?

21-item Finnegan Neonatal Abstinence Scoring System: 21-symptom FNAST for longitudinal assessment of neonatal withdrawal signs; descriptive output without tr…

Population and scope

Neonatal Withdrawal. Term newborns exposed in utero to psychoactive substances, particularly opioids

Also searched as

FNASS · fnass · 21-item finnegan · neonatal abstinence scoring · finnegan 21 items · abstinencia neonatal

Calculator available

This page has an active local calculator in PedsCore. Entered values are processed in the browser, with references, limits and interpretation shown alongside the result.

Open calculator

Clinical use

This PedsCore page brings together clinical information, implementation status and available evidence for 21-item Finnegan Neonatal Abstinence Scoring System. It is intended for Term newborns exposed in utero to psychoactive substances, particularly opioids. The tool belongs to Neonatology and should be interpreted in the appropriate clinical context.

Interpretation and validation

21-symptom FNAST/Finnegan using the 2019 PhenX protocol, published in full and stated to be freely available with no permission required for use. Output is descriptive and does not trigger treatment.

PedsCore does not replace clinical judgement. Scores, rules and calculators are presented with evidence traceability and a visible implementation status.

Clinical review and maintenance

Implementation review and independent clinical review are shown separately. PedsCore does not attribute named reviewers or external endorsement without a public record supporting the claim. The repository preserves source, change and test history.

Editorial transparency

This page is part of an open-source project. Evidence level, implementation status, validation notes and sources are shown explicitly. It currently contains 2 catalog references. Content and calculation changes are reviewed through the public repository, automated tests and version traceability.

The absence of an active calculator is not a clinical recommendation: some tools remain reference-only while source, licensing, exact variant or validation still require review.

Each page lets you verify what is being assessed, which population the tool describes, whether local calculation is available, which limitations remain open and which references support implementation. This context matters when different publications, versions or adaptations share a similar name but are not interchangeable.