NUR 335 Exam 4 Study Guide with Questions and Answers
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Course
NUR 335
Institution
NUR 335
3 main cardiovascular shunts ductus arteriosus, foramen ovale, and ductus venosus
Ductus arteriosus connects pulmonary artery w aorta (normally closes within 15hr of life)
Foramen ovale opening between right and left atrium (normally closes within 24-48 hr of life)
Ductus venosus connects umbili...
NUR 335 Exam 4 Study Guide with
Questions and Answers
3 main cardiovascular shunts ✅ductus arteriosus, foramen ovale, and ductus venosus
Ductus arteriosus ✅connects pulmonary artery w aorta (normally closes within 15hr of
life)
Foramen ovale ✅opening between right and left atrium (normally closes within 24-48
hr of life)
Ductus venosus ✅connects umbilical vein to inferior vena cava
Normal temperature for newborn ✅36.5-37.2
Why are newborns at higher risk of thermoregulatory problems ✅-higher body
surfactant to body mass ratio
-limited fat
-higher metabolic rate
-limited thermoregulatory ability
-inability to shiver
4 main ways newborns lose heat ✅evaporation, conduction,
Convection, or radiation
Cold stress ✅excessive heat loss that results in compensatory mechanisms to
maintain body temperature
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