Anatomy & Physiology Fundamentals Flashcards
7 cards from real Low Risk Neonatal Nurse Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Anatomy & Physiology Fundamentals flashcards as text
Where is brown adipose tissue primarily located in the newborn?
Answer: Between the scapulae, around the neck, kidneys, and adrenals
Brown fat is concentrated at the nape, between the scapulae, and around the kidneys and adrenals, and generates heat via nonshivering thermogenesis.
A wet newborn loses the most heat immediately after birth through which mechanism?
Answer: Evaporation
Amniotic fluid on the skin evaporates quickly, causing rapid heat loss unless the baby is dried.
A crib placed next to a cold window causes heat loss by which mechanism?
Answer: Radiation
Radiation is heat transfer to a cooler solid object not in direct contact with the infant.
Which physiologic mechanism explains hypoglycemia in infants of diabetic mothers?
Answer: Fetal hyperinsulinism after loss of maternal glucose supply
Fetal pancreatic hyperplasia from maternal hyperglycemia continues producing insulin after cord clamping, dropping blood glucose.
A healthy term newborn should pass the first meconium stool within what time frame?
Answer: Within 24 to 48 hours
Most term newborns pass meconium within 24 to 48 hours, and delay beyond that may suggest obstruction or Hirschsprung disease.
Why are newborns prone to regurgitation after feeding?
Answer: Immature lower esophageal (cardiac) sphincter
The lower esophageal sphincter is immature and relaxes easily, allowing reflux of small amounts of milk.
Which statement describes newborn renal function?
Answer: Concentrating ability is limited, making dehydration a risk
The immature kidney has a low GFR and limited ability to concentrate urine, so fluid imbalance develops quickly.
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