Free Finnegan NAS Score Calculator

The Finnegan NAS Score Calculator is a free online resource designed to streamline neonatal abstinence scoring. This tool applies the standardized Finnegan Scoring System to help clinicians evaluate an infant’s withdrawal-related signs and calculate a reliable newborn withdrawal score. As a comprehensive NAS assessment tool, it organizes the evaluation into three major symptom domains, ensuring consistent monitoring of neonates at risk. While this calculator simplifies the scoring process, all clinical decisions should remain in the hands of qualified healthcare providers.

What Is Neonatal Abstinence Syndrome?

Neonatal abstinence syndrome (NAS) develops when a baby who was prenatally exposed to drugs undergoes withdrawal after delivery. The sudden loss of the substance triggers a spectrum of symptoms such as tremors, high‑pitched crying, feeding difficulties, and temperature dysregulation. The incidence of NAS has been steadily rising across all communities in the United States, underscoring the importance of standardized tools like the Finnegan Neonatal Abstinence Scoring Tool for early detection and management.

Assessment Schedule and Guidelines

Timely and consistent assessments are essential for accurate NAS monitoring. The first evaluation should be conducted within the first two hours of life. Subsequent assessments are typically performed every four hours. If a score reaches 8 or higher, the interval is shortened to two hours for a minimum of 24 hours. Once the infant’s scores remain at 7 or below for a full 24‑hour period on the two‑hour schedule, the four‑hour interval may be resumed. Each evaluation should reflect the infant’s behavior since the last scoring, and the baby should be awake and calm for an accurate assessment.

How to Use the Finnegan NAS Score Calculator

The calculator organizes the assessment into three distinct categories:

• Central nervous system (CNS) disturbances – Includes crying pattern, sleep duration, Moro reflex, tremors, muscle tone, excoriation, myoclonic jerks, and convulsions. Select the observation that best matches the infant’s status.
• Metabolic, vasomotor, and respiratory disturbances – Covers body temperature, respiratory rate, sweating, yawning, mottling, nasal stuffiness, sneezing, and nasal flaring. Fill in the relevant parameters.
• Gastrointestinal (GI) disturbances – Captures excessive sucking, poor feeding, regurgitation, projectile vomiting, and stool consistency. Obtain feeding history from caregivers when needed.

After completing all applicable items, the total score is automatically computed. This sum then guides the next steps in care.

Finnegan Score Interpretation

There is no single universally accepted cutoff for starting drug therapy, but several indicators point toward the need for pharmacological intervention:

• Nonpharmacological supportive measures are insufficient to control symptoms.
• The infant consistently scores high — typically a score of 8 or more on three consecutive assessments or 12 or more on two consecutive assessments.
• The infant shows severe clinical signs such as seizures, dehydration, or other complications.

Treatment Options for NAS

Nonpharmacological Therapy

These approaches are used for every NAS infant and are often sufficient for mild withdrawal:

• Demand feeding, frequent smaller feeds, and high‑calorie formulas.
• Gentle handling, swaddling, manual rocking, and holding.
• Reduced environmental stimulation — dim lighting and low noise.
• Massage therapy and music therapy.
• Encouraging active parental involvement and skin‑to‑skin contact.

Pharmacological Therapy

If nonpharmacological options are not enough, medication may be indicated. Commonly used drugs include:

• Morphine – the most frequently prescribed agent for NAS.
• Methadone
• Phenobarbital
• Clonidine
• Buprenorphine

Long‑Term Outcomes of NAS

While more research is needed, current evidence suggests that infants with NAS may face certain developmental challenges later in childhood, such as:

• Lower IQ and intellectual disability.
• Delays in speech, language, and memory.
• Motor coordination problems.
• Behavioral difficulties.
• Learning disabilities and trouble at school.

Finnegan Scoring Criteria Reference

The tables below list the point assignments for each sign in the Finnegan scoring system, arranged by domain.

Central Nervous System Disturbances

Sign	Observation	Points
Cry	Normal cry	0
	High‑pitched cry for less than 5 minutes	2
	Continuous high‑pitched cry lasting more than 5 minutes	3
Sleep	Normal sleep duration	0
	Sleeps fewer than 3 hours after feeding	1
	Sleeps fewer than 2 hours after feeding	2
	Sleeps fewer than 1 hour after feeding	3
Moro reflex	Normal reflex	0
	Hyperactive	2
	Markedly hyperactive	3
Tremors	None	0
	Mild when disturbed	1
	Moderate‑severe when disturbed	2
	Mild when undisturbed	3
	Moderate‑severe when undisturbed	4
Increased muscle tone	Absent	0
	Present	1
Excoriation	Absent	0
	Present	1
Myoclonic jerks	Absent	0
	Present	3
Generalized convulsions	Absent	0
	Present	5

Metabolic, Vasomotor, and Respiratory Disturbances

Sign	Observation	Points
Temperature	37.2 °C (99 °F) or lower	0
	37.3–38.3 °C (99.1–100.9 °F)	1
	Above 38.3 °C (> 100.9 °F)	2
Respiratory rate	40–60 breaths per minute	0
	More than 60 breaths per minute without retractions	1
	More than 60 breaths per minute with retractions	2
Sweating	Absent	0
	Present	1
Frequent yawning	No	0
	Yes	1
Mottling	No	0
	Yes	1
Nasal stuffiness	No	0
	Yes	1
Sneezing	No	0
	Yes	1
Nasal flaring	No	0
	Yes	2

Gastrointestinal Disturbances

Sign	Observation	Points
Excessive sucking	No	0
	Yes	1
Poor feeding	No	0
	Yes	2
Regurgitation	None or minimal	0
	Two or more episodes during or after feeding	2
Projectile vomiting	No	0
	Yes	3
Stools	Normal	0
	Loose	2
	Watery	3

These criteria provide a standardized framework for neonatal abstinence scoring, assisting healthcare teams in tracking symptom severity and adjusting treatment plans accordingly.