Chater 21 Flashcards
Non shivering thermogenesis
Primary method of heat production
Metabolism of brown fat to produce/generates heat
Blood passes through and is warmed then carries warmth to rest of body
Methods of heat loss
Evaporation
Conduction
Convection
Radiation
What interferes with heat regeneration
Iugr- inadequate brown fat stress
Hypoxia
Hypoglycemia
Acidosis
Commom s/s amd effects/hazards of cold stress on the neonate
Respiratory distress- increased need for o2, diminished surfactant production, vasoconstriction
Hyopglycemia- glucose use to produce heat metabolically
Jaundice
Metabolic acidosis
Hyperthermia in infants
Increased need for glucose and o2
Peripheral vasodilation increased insensible fluid losses
Brown fat (look up in book)
Newborn stools first stool
Meconium- consists of amniotic fluid, vernix, hair, cells
Greenish black with thick sticky tarlike consistency
Usually within 12 hr
If not before 48 obstruction suspected
New born stool- second kind
Transitional
Combo of meconium and milk stools
Greenish brown and looser than meconium
Last stage of newborn stools
Milk stools Breast milk Seedy with mustard colors and consistency Sweetnsour smell More frequent After day 6 6-8/ day
Formula
Pale yellow to light brown
Firmer
May excrete several stools/day or only 1-2
Increased risk for hypoglycemia
Preterm, late term, small for GA,
Glycogen stored may have not accumulated adequately
Infants exposed to stressors like asphyxia, infection, cold
Source of bilirubin
Primary source
Hemolysis of erythrocytes
Kernicterus
Permanent neurological injury the results from this bilirubin toxicity
Physiologic jaundice
Caused by transient hyperbilirubinemia Considered normal Total serum bilirubin peak at 5-6 between 2nd-4th day Falls to <2 by days 5-7 Appears 2nd to 3rd day after birth
