Finnegan Score Calculator (Neonatal Abstinence Syndrome)

Quick answer

The Finnegan score calculator adds up 21 signs of neonatal abstinence syndrome – crying, sleep, tremors, muscle tone, feeding, vomiting, stools and more – to assess withdrawal in newborns exposed to opioids before birth.

Finnegan score
0 points
Interpretation
Below 8 – continue non-drug care and monitoring

The modified Finnegan Neonatal Abstinence Scoring Tool is used every 3–4 hours in many neonatal units. Scores of 8 or more on three consecutive assessments (or 12 or more on two) usually prompt medical treatment. Newer approaches such as Eat, Sleep, Console focus on the baby’s function.

How to use the Finnegan Score Calculator

  1. Crying
  2. Sleep after feeding
  3. Moro reflex
  4. Tremors when disturbed
  5. Tremors when undisturbed
  6. Increased muscle tone
  7. Excoriation (skin abrasion)
  8. Myoclonic jerks
  9. Generalised convulsions
  10. Sweating
  11. Temperature
  12. Frequent yawning (more than 3–4 times)
  13. Mottling
  14. Nasal stuffiness
  15. Sneezing (more than 3–4 times)
  16. Nasal flaring
  17. Respiratory rate
  18. Excessive sucking
  19. Poor feeding
  20. Vomiting
  21. Stools

Results update as you type, and every field accepts the units shown in its menu.

How it works

Each answer carries the points shown in the published score. The calculator adds them up and maps the total to the published interpretation.

Scoring table

Item Answers and points
Crying None = 0; Excessive high-pitched cry = 2; Continuous high-pitched cry = 3
Sleep after feeding 3 hours or more = 0; Less than 3 hours = 1; Less than 2 hours = 2; Less than 1 hour = 3
Moro reflex Normal = 0; Hyperactive = 2; Markedly hyperactive = 3
Tremors when disturbed None = 0; Mild = 1; Moderate to severe = 2
Tremors when undisturbed None = 0; Mild = 3; Moderate to severe = 4
Increased muscle tone No = 0; Yes = 2
Excoriation (skin abrasion) No = 0; Yes = 1
Myoclonic jerks No = 0; Yes = 3
Generalised convulsions No = 0; Yes = 5
Sweating No = 0; Yes = 1
Temperature Below 37.2 °C (99 °F) = 0; 37.2–38.2 °C (99–100.8 °F) = 1; Above 38.2 °C (100.8 °F) = 2
Frequent yawning (more than 3–4 times) No = 0; Yes = 1
Mottling No = 0; Yes = 1
Nasal stuffiness No = 0; Yes = 1
Sneezing (more than 3–4 times) No = 0; Yes = 1
Nasal flaring No = 0; Yes = 2
Respiratory rate 60/min or less = 0; Over 60/min = 1; Over 60/min with retractions = 2
Excessive sucking No = 0; Yes = 1
Poor feeding No = 0; Yes = 2
Vomiting None = 0; Regurgitation = 2; Projectile vomiting = 3
Stools Normal = 0; Loose = 2; Watery = 3

Inputs explained

Field What to enter
Crying Choose one: None, Excessive high-pitched cry, Continuous high-pitched cry
Sleep after feeding Choose one: 3 hours or more, Less than 3 hours, Less than 2 hours, Less than 1 hour
Moro reflex Choose one: Normal, Hyperactive, Markedly hyperactive
Tremors when disturbed Choose one: None, Mild, Moderate to severe
Tremors when undisturbed Choose one: None, Mild, Moderate to severe
Increased muscle tone Choose one: No, Yes
Excoriation (skin abrasion) Choose one: No, Yes
Myoclonic jerks Choose one: No, Yes
Generalised convulsions Choose one: No, Yes
Sweating Choose one: No, Yes
Temperature Choose one: Below 37.2 °C (99 °F), 37.2–38.2 °C (99–100.8 °F), Above 38.2 °C (100.8 °F)
Frequent yawning (more than 3–4 times) Choose one: No, Yes
Mottling Choose one: No, Yes
Nasal stuffiness Choose one: No, Yes
Sneezing (more than 3–4 times) Choose one: No, Yes
Nasal flaring Choose one: No, Yes
Respiratory rate Choose one: 60/min or less, Over 60/min, Over 60/min with retractions
Excessive sucking Choose one: No, Yes
Poor feeding Choose one: No, Yes
Vomiting Choose one: None, Regurgitation, Projectile vomiting
Stools Choose one: Normal, Loose, Watery

Health note: this calculator is for education and screening only and is not a diagnosis or treatment advice. Discuss your results with a qualified clinician.

Formula

Score = sum of the points for each item

Worked example

Inputs — Crying: None; Sleep after feeding: 3 hours or more; Moro reflex: Normal; Tremors when disturbed: None; Tremors when undisturbed: None; Increased muscle tone: No; Excoriation (skin abrasion): No; Myoclonic jerks: No; Generalised convulsions: No; Sweating: No; Temperature: Below 37.2 °C (99 °F); Frequent yawning (more than 3–4 times): No; Mottling: No; Nasal stuffiness: No; Sneezing (more than 3–4 times): No; Nasal flaring: No; Respiratory rate: 60/min or less; Excessive sucking: No; Poor feeding: No; Vomiting: None; Stools: Normal.
Results — Finnegan score = 0 points; Interpretation = Below 8 – continue non-drug care and monitoring.

Key terms

NAS
Neonatal abstinence syndrome (neonatal opioid withdrawal syndrome).

Frequently asked questions

How often is the Finnegan score done?

Every 3–4 hours, ideally between feeds.

What are non-drug treatments?

Rooming-in, skin-to-skin contact, breastfeeding when appropriate, swaddling and a calm environment.

Which drugs cause NAS?

Mostly opioids, but also benzodiazepines, some antidepressants and other substances.

Sources

  1. Finnegan LP et al. Neonatal abstinence syndrome: assessment and management. Addict Dis, 1975
  2. Patrick SW et al. Neonatal opioid withdrawal syndrome. Pediatrics, 2020

Cite this calculator

Speedy Calculator. (2026). Finnegan Score Calculator (Neonatal Abstinence Syndrome). Speedy Calculator. https://speedycalculator.com/calculators/health/finnegan-nas/