modified_finnegan_nas_score: Modified Finnegan Neonatal Abstinence Score (NAS)

In cliot: Clinical Indices and Outcomes Tools

Modified Finnegan Neonatal Abstinence Score (NAS)

Description

Calculates the Modified Finnegan Score to assess the severity of Neonatal Abstinence Syndrome (NAS) in infants exposed to opioids or other substances in utero. The score evaluates 21 symptoms across CNS, metabolic/vasomotor/respiratory, and gastrointestinal domains.

Usage

modified_finnegan_nas_score(cry_score, sleep_score, moro_reflex_score,
                            tremors_score, increased_muscle_tone, excoriation,
                            myoclonic_jerks, generalized_convulsions, sweating,
                            fever_score, frequent_yawning, mottling, nasal_stuffiness,
                            frequent_sneezing, nasal_flaring, respiration_score,
                            excessive_sucking, poor_feeding, projectile_vomiting,
                            stool_score)

Arguments

cry_score	Numeric. 0: Normal; 2: High pitched; 3: Continuous high pitched.
sleep_score	Numeric. 0: Sleeps >3 hours after feeding; 1: Sleeps 2-3 hours; 2: Sleeps 1-2 hours; 3: Sleeps <1 hour.
moro_reflex_score	Numeric. 0: Normal; 2: Hyperactive; 3: Markedly hyperactive.
tremors_score	Numeric. 0: Normal; 1: Disturbed, mild; 2: Disturbed, marked; 3: Undisturbed, mild; 4: Undisturbed, marked.
increased_muscle_tone	Numeric (0 or 1). 1 = Yes (+2 points).
excoriation	Numeric (0 or 1). 1 = Yes (+1 point).
myoclonic_jerks	Numeric (0 or 1). 1 = Yes (+3 points).
generalized_convulsions	Numeric (0 or 1). 1 = Yes (+5 points).
sweating	Numeric (0 or 1). 1 = Yes (+1 point).
fever_score	Numeric. 0: <37.2 C; 1: 37.2-38.3 C; 2: >38.4 C.
frequent_yawning	Numeric (0 or 1). >3-4 times/interval. (1 = Yes, +1 point).
mottling	Numeric (0 or 1). 1 = Yes (+1 point).
nasal_stuffiness	Numeric (0 or 1). 1 = Yes (+1 point).
frequent_sneezing	Numeric (0 or 1). >3-4 times/interval. (1 = Yes, +1 point).
nasal_flaring	Numeric (0 or 1). 1 = Yes (+2 points).
respiration_score	Numeric. 0: <60/min; 1: >60/min; 2: >60/min with retractions.
excessive_sucking	Numeric (0 or 1). 1 = Yes (+1 point).
poor_feeding	Numeric (0 or 1). Infrequent/uncoordinated feeding. (1 = Yes, +2 points).
projectile_vomiting	Numeric (0 or 1). 1 = Yes (+2 points).
stool_score	Numeric. 0: Normal; 2: Loose; 3: Watery.

Value

A list containing:

NAS_Score	The calculated total score.
Recommendation	General clinical guidance based on the score threshold of 8.

References

Finnegan LP, Connaughton JF Jr, Kron RE, Emich JP. Neonatal abstinence syndrome: assessment and management. Addict Dis. 1975;2(1-2):141-158.

Examples

# Example 1: Moderate Withdrawal
# High cry (2), Sleep 1-2h (2), Tremors mild dist (1), Sweating (1), Loose stool (2)
modified_finnegan_nas_score(2, 2, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2)

# Example 2: Severe Withdrawal
# Continuous cry (3), Sleep <1h (3), Tremors undisturbed marked (4),
# Fever >38.4 (2), Watery stool (3)
modified_finnegan_nas_score(3, 3, 0, 4, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.