Newborn Assessment and Physiology

Overview

The neonatal period encompasses the first 28 days of life, during which the infant must undergo significant physiological adaptations. Key transitions include the initiation of respiration and the change from fetal to neonatal circulation. Nursing care emphasizes safety, thermoregulation, and early identification of complications.

Key nursing concepts

• Thermoregulation is vital as newborns lack the ability to shiver and use brown fat.
• The first period of reactivity is an ideal time to initiate breastfeeding.
• Jaundice appearing within the first 24 hours is pathological and requires notification.
• The Apgar score is performed at 1 and 5 minutes to evaluate transition to extrauterine life.
• Molding and caput succedaneum are normal findings from the birth process.
• Newborns are obligate nose breathers; clear the mouth then the nose if suctioning.

Important nursing considerations

• Assess the heart rate by apical pulse for one full minute.
• Monitor the axillary temperature to prevent cold stress and increased oxygen demand.
• Perform a gestational age assessment using the Ballard Scale within 12 hours.
• Evaluate the newborn's reflexes (Moro, rooting, sucking) for neurological intactness.
• Observe for signs of respiratory distress, such as nasal flaring or grunting.
• Administer prophylactic Erythromycin ointment to the eyes to prevent ophthalmia neonatorum.

Patient teaching

• Always place the baby on their back to sleep to reduce the risk of SIDS.
• Explain that acrocyanosis (blue hands/feet) is normal during the first 24-48 hours.
• Demonstrate how to keep the umbilical cord stump clean and dry until it falls off.

Related practice questions

Real questions from the NursGuru bank, each with the answer and rationale.

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3. Practice question 3 →
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5. Practice question 5 →

Newborn Assessment and Physiology flashcards

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