Apgar score

Anatomy or system affected: Circulatory system, heart, lungs, muscles, nervous system, respiratory system

Definition:Virginia Apgar, an obstetrical anesthesiologist, developed the Apgar score in 1952 to assess the clinical status of newborns

Indications and Procedures

The five categories evaluated by the Apgar score—heart rate, respiratory effort (breathing effort), muscle tone, response to stimulus (reflex response), and skin color—reflect functions necessary to sustain life. The accompanying table lists the components in descending order of importance. The Apgar score is the sum of scoring (0, 1, or 2) for each of the five parameters.

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The first Apgar score is initially assigned one minute after birth. It reflects the baby’s condition in the womb and indicates the degree of medical intervention or resuscitation that may be required. A low one-minute score is not predictive of adverse neurologic outcomes. A low Apgar score may indicate a need for clearing of the airway or oxygen therapy to help with breathing or physical stimulation to improve the heart rate.

A second Apgar score is assigned five minutes after birth. A score of seven to ten is considered normal, while a score of four to six is considered borderline. A five-minute Apgar score of three or less has been associated with cerebral palsy in full-term infants; however, only approximately 4 to 5 percent of infants with low five-minute Apgar scores have long-term neurologic abnormalities. A stronger relationship exists between low Apgar scores and future neurologic disability when the assessment is taken at times greater than ten minutes after birth.

Perspective and Prospects

Approximately 1.4 percent of all babies have Apgar scores of less than seven at five minutes after birth. The highest proportions of infants with low Apgar scores at five minutes are among infants born to mothers under sixteen years of age or over forty years of age and to those who did not receive adequate prenatal care.

Current research using the Apgar score focuses increasingly on the neonatal heart rate and respiratory effort, looking for long-term subtle behavioral disabilities that may be associated with low and borderline Apgar scores. A newborn’s Apgar score is only an indicator of the level of intervention needed by medical staff on behalf of the baby, if any. It is not an indication of an individual’s future development, ability, or intelligence.

Bibliography

"Apgar Score." Medline Plus, US National Library of Medicine, 20 Nov. 2014, medlineplus.gov/ency/article/003402.htm. Accessed 9 Jan. 2017.

"Apgar Scores." American Academy of Pediatrics, 25 Sept. 2015, www.healthychildren.org/English/ages-stages/prenatal/delivery-beyond/Pages/Apgar-Scores.aspx. Accessed 9 Jan. 2017.

"The Apgar Score, Committee Opinion Number 644." American College of Obstetricians and Gynecologists, Oct . 2015, www.acog.org/Resources-And-Publications/Committee-Opinions/Committee-on-Obstetric-Practice/The-Apgar-Score. Accessed 9 Jan. 2017.

Apgar, Virginia, and Joan Beck. Is My Baby All Right? New York: Pocket Books, 1974.

Barness, Lewis A., and Enid Gilbert-Barness Manual of Pediatric Physical Diagnosis. 8th ed., Oxford UP, 2008.

Gardner, Sandra Lee, et al., editors. Merenstein and Gardner's Handbook of Neonatal Intensive Care. 8th ed., Elsevier, 2016.

Schwartz, M. William, et al., editors. Schwartz’s Clinical Handbook of Pediatrics. 5th ed., Wolters Kluwer/Lippincott Williams & Wilkins, 2012.

“What Is a Good Apgar Score?” Cleveland Clinic, 24 May 2022, my.clevelandclinic.org/health/diagnostics/23094-apgar-score. Accessed 21 July 2023.

Zitelli, Basil J., and Holly W. Davis, eds. Atlas of Pediatric Physical Diagnosis. 6th ed. St. Louis, Mo.: Mosby/Elsevier, 2012.