Finnegan Neonatal Abstinence Score (NAS)
Modified Finnegan Neonatal Abstinence Score: 24 weighted binary signs plus 3 graded items (sleep 0-3, fever 0-2, respiratory rate 0-2) summed for one scoring interval.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Excessive high-pitched cry
- Yes
- Hyperactive Moro reflex
- Yes
- Sweating
- Yes
- Sleeps after feeding
- 2
- Fever: 37.2-38.3 C (1) / >38.3 C
- 1
- Loose stools
- Yes
Result: Total NAS score 10 (elevated, >=8 on three consecutive scores prompts treatment consideration).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- <8
- Below the usual pharmacologic-treatment threshold.
- >=8 x3 or >=12 x2
- Three consecutive scores of 8 or more, or two of 12 or more, conventionally prompts pharmacologic-treatment consideration per protocol.
What you enter
- Excessive high-pitched cry (2)
- Continuous high-pitched cry (3)
- Hyperactive Moro reflex (2)
- Markedly hyperactive Moro (3)
- Mild tremors when disturbed (1)
- Marked tremors when disturbed (2)
- Mild tremors undisturbed (3)
- Marked tremors undisturbed (4)
The other 19 fields
- Increased muscle tone (2)
- Excoriation of skin (1)
- Myoclonic jerks (3)
- Generalized convulsions (5)
- Sweating (1)
- Frequent yawning (1)
- Mottling (1)
- Nasal stuffiness (1)
- Sneezing (1)
- Nasal flaring (2)
- Excessive sucking (1)
- Poor feeding (2)
- Regurgitation (2)
- Projectile vomiting (3)
- Loose stools (2)
- Watery stools (3)
- Sleeps after feeding: <3 h (1) / <2 h (2) / <1 h (3)
- Fever: 37.2-38.3 C (1) / >38.3 C (2)
- Respiratory rate: >60 (1) / >60 with retractions (2)
How this is calculated
Finnegan LP, et al. Addict Dis. 1975;2(1-2):141-158 (Finnegan NAS); modified Finnegan as used in most U.S. protocols. Higher = worse. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.