Taber's Cyclopedic Medical Dictionary, 21st Edition

Apgar score

(ăp′găr)
[Pronunciation]
[Virginia Apgar, U.S. anesthesiologist, 1909–1974]
A system for evaluating an infant's physical condition at birth.
The infant's heart rate, respiration, muscle tone, response to stimuli, and color are rated at 1 min, and again at 5 min after birth. Each factor is scored 0, 1, or 2; the maximum total score is 10. Interpretation of scores: 7 to 10, good to excellent; 4 to 6, fair; less than 4, poor condition. A low score at 1 min is a sign of perinatal asphyxia and the need for immediate assisted ventilation. Infants with scores below 7 at 5 min should be assessed again in 5 more min; scores less than 6 at any time may indicate need for resuscitation. In depressed infants, a more accurate determination of the degree of fetal hypoxia may be obtained by direct measures of umbilical cord blood oxygen, carbon dioxide partial pressure, and pH.


Apgar Score

SCORE
Sign 0 1 2
Heart rate Absent Slow (less than 100) Greater than 100
Respiratory effort Absent Slow, irregular Good; crying
Muscle tone Limp Some flexion of extremities Active motion
Reflex irritability No response Grimace Cry
Color* Blue, pale Body pink; extremities blue Completely pink

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