Fetal adaptation to extrauterine life Flashcards
What are the five structures of fetal circulation?
Umbilical arteries
Umbilical vein
Ductus venosus
Foramen Ovale
Ductus Arteriosus
What are the three immediate physiological tasks that the fetus has to complete?
Initiate and maintain respirations
Convert from fluid filled to air filled lungs
Redirect blood flow towards fetal lungs and close shunts
Where is the Ductus Venosus situated?
Between the liver and the inferior vena cava
Where is the Foramen Ovale situated?
In the heart between the left and right atrium
Where is the Ductus Arteriosus situated?
In the heart between the pulmonary artery and the aorta
What things help to initiate respiration in the new born?
Mild aspyxia, temp changes, Tactile, light, noise stimuli, thoracic recoil with birth of torso and elevated CO2 levels
Name the four ways that a newborn can lose heat?
Conduction
Convection
Evaporation
Radiation
What are the three points of the neonatal energy triangle?
Hypothermia – hypoglycaemia – hypoxia
