Initial Assessment of the Newborn (Physical Exam) | Lecturio Care of Childbearing Family

Main ideas / lessons conveyed

• The newborn “general survey” (initial physical exam) includes a focused look at skin: color, tone, and normal vs. notable skin findings.
• Many common neonatal skin findings are benign/temporary and should be explained to parents using anticipatory guidance.
• Some findings must be distinguished from concerning problems (e.g., melanocytosis vs. bruising) to prevent misinterpretation of injury or abuse.

Methodology / instructions

Perform a general survey of the newborn’s skin

Check skin color

• Look for central pink/normal coloration.
• Assess whether hands and feet are bluish
  • If they are, identify acrocyanosis.
  • Explain terminology:
    • Acro- = edges/extremities
    • Cyanosis = blue / poorly oxygenated appearance
  • Reassure parents:
    • This is a normal temporary response.
    • It happens because before birth, oxygen is not “sent” to hands/feet as much; after birth it takes a few days for circulation/oxygenation to normalize.

Assess newborn tone

• Consider posture/flexion patterns (connected to previously discussed APGAR concepts).
• Compare:
  • Good tone: arms/legs held with flexed posture (arms in a “muscle position,” legs pulled up)
  • Poor tone / flattened tone: more “loose/flat” appearance
    • This may be expected in preterm infants.

Identify and interpret vernix caseosa

• Look for a white/cream, greasy, “cheese-like” substance on the skin.
• Explain cause and purpose:
  • Derived from sebaceous gland secretions
  • Helps protect the skin
    • (Reference concept: skin wrinkling after long baths/showering—vernix prevents wrinkling in the uterus.)
• Where to expect it:
  • More prominent in skin creases/folds
• Management instruction:
  • Do not remove it
  • It can be rubbed in / left as-is; it functions as an excellent moisturizer
• Memory aid:
  • “Vernix caseosa” looks like “a case of cheese.”

Recognize lanugo (normal newborn hair)

• Definition: fine fetal hair
• Timing/development:
  • Often present around 12–20 weeks gestation (“baby fur”)
  • By about 28 weeks, it may begin to fall out, leading to patchier coverage
  • At term, there is less lanugo
  • Post-term infants may have none
• Where it may appear:
  • Tops of ears, back, sometimes face
• Reassure parents:
  • It will fall out over time; the baby will not keep a hairy face.

Evaluate other common skin conditions (and distinguish them from dangerous problems)

Erythema toxicum (“newborn rash”)

• Appearance: can resemble acne, but babies don’t have acne
• Cause explanation: eosinophils reacting to the new environment after birth
• Distribution: commonly on face, trunk, legs
• Reassure parents:
  • Benign and typically resolves as the infant adapts

Telangiectatic nevi (“stork bites”)

• Cause: collection of immature red blood vessels
• Anticipatory guidance:
  • May look more red when the baby is upset or crying
• Locations:
  • Back of the neck, eyelids, lips
• Prognosis:
  • Generally disappears around age 1 year

Melanocytosis (formerly “Mongolian spots”)

• Terminology instruction:
  • Use melanocytosis instead of the outdated, non-inclusive term
• Appearance: darkened patches over buttocks/legs
• Key diagnostic test:
  • Blanching test
    • Press/touch briefly—melanocytosis blanches
    • Bruises do not blanch
• Clinical importance:
  • Correctly document/chart it to avoid misinterpretation as trauma/abuse
  • The narrator notes cases where parents faced child protective services when it wasn’t recorded.

Strawberry hemangiomas

• Appearance: red lesion resembling a strawberry
• Course:
  • Usually resolves by ages 2–3, but may persist up to age 10
• Location:
  • Can be anywhere; commonly on the trunk

Port-wine stain

• Key differences from strawberry hemangioma:
  • Port-wine stain does not go away
  • Strawberry hemangioma typically resolves
• Appearance:
  • Usually flat
  • Strawberry hemangiomas are typically raised

Speakers / sources featured

• Lecturio Care of Childbearing Family (course/video source)
• Unspecified narrator/lecturer (subtitles do not name a specific individual)