Neonatology Book


Newborn Endocrine Examination

Aka: Newborn Endocrine Examination
  1. See Also
    1. Neonatal Hypoglycemia
    2. Neonatal Hypothyroidism
  2. Physiology
    1. Maternal Hormones are present in males and females following delivery and for the first few months
    2. Effects of maternal Hormones
      1. Vaginal Bleeding
        1. Occurs in up to 3% of girls peaking by day 5 and resolving within 1 week
        2. Prolonged Vaginal Bleeding should prompt Coagulopathy evaluation
      2. Breast buds
        1. Form within first week of life in both male and female newborns
        2. Persists for >1 month in 25% of females and 5% of males
        3. Asymmetry of up to a 1 cm difference is normal
        4. Milky discharge may occur
        5. Distinguish from Breast Abscess
  3. References
    1. Claudius in Majoewsky (2013) EM:Rap 13(1): 9

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