NURS 84 Chapter Notes - Chapter 5: Ductus Venosus, Pulmonary Artery, Umbilical Vein
Document Summary
Mechanical compression of the chest, air gets pulled in, reduces neg. Thermal drop of temperature and tactile stim. Ductus arteriosis connects pulmonary artery and aorta, constricts. Home preparation for the fifth week of perinatal theory class (newborn) Fetal to newborn circulation with the first breath, blood will go from pulmonary artery to lungs. Foramen ovale septum between right and left atrium opens only r to l; will close when l side pressure increases after birth and cord clamping. Permanently closes in a couple of months cava bypassing the liver; eventually occludes 7-14 days after birth. Nonshivering thermogenesis production of heat by oxygenation of brown fat; babies need to have brown fat in order to be able to use it. At risk premature, iugr, hypoglycemic, hypoxic, acidotic. Evaporation water loss - baby needs to be dried after birth!!! Ductus venosus directs blood from umbilical vein to inerior vena.
