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Q1: What is the Apgar score and when is it performed on a newborn?
The Apgar score is calculated within 1 to 5 minutes of birth to determine how well the baby has tolerated the birthing process. It evaluates five objective signs: heart rate, respiratory effort, muscle tone, skin color, and reflex irritability, each scored 0, 1, or 2 points. This quick assessment establishes the newborn's initial health status.
Q2: Why is skin-to-skin contact recommended before the full newborn physical exam?
If the baby is stable after birth, it is recommended to wait at least 1 hour before the full exam to allow skin-to-skin time with the mother. This contact regulates the baby's heart rate and breathing, promotes bonding, and establishes breastfeeding, supporting the infant's physiological transition.
Q3: What does the Ballard score assess in newborns with unknown gestational age?
The Ballard score estimates gestational maturity by assessing six physical components and six neuromuscular components, each scored from -1 to 5. The total score determines the baby's gestational age, helping clinicians identify premature or post-term infants who may require specialized care or monitoring.
Q4: How do you screen for developmental dysplasia of the hip in newborns?
Two maneuvers assess hip stability: the Barlow maneuver gently applies pressure from above the hip joint to detect posterior femoral head dislocation, while the Ortolani maneuver applies pressure from behind to detect anterior dislocation. A palpable clunk with either maneuver suggests developmental dysplasia of the hip, more common in breech-born infants.
Q5: What are the five primitive reflexes tested during the newborn neurological exam?
The five primitive reflexes are: sucking (touching the roof of the mouth triggers sucking), grasp (fingers or toes wrap around objects), rooting (touching the mouth corner causes head turning), Moro (startle response with arm extension), and tonic neck (head turning causes ipsilateral arm extension). These reflexes disappear within the first several months of life.
Q6: What findings on the newborn exam might indicate congenital heart defects?
Approximately 80% of newborns have a heart murmur in the first week of life, typically from a patent ductus arteriosus (PDA), a fetal blood vessel connecting the pulmonary artery to the aorta. A weak or delayed femoral pulse relative to the brachial pulse could indicate coarctation of the aorta, requiring further evaluation and potentially augment acquisition physical exam skills.
Q7: What should be included in anticipatory guidance provided to parents during the newborn exam?
Anticipatory guidance includes instruction on hand hygiene, umbilical cord care to prevent infection, and safe sleep practices—placing the baby on their back, swaddled without additional blankets or stuffed animals. These recommendations promote infection prevention and reduce the risk of sudden infant death syndrome.