COMPREHENSIVE NICU NURSE CORE EXAM REVIEW

COMPREHENSIVE NICU NURSE CORE EXAM REVIEW ductus arteriosus (what is it, what does it do, and why?) - CORRECT ANSWER -blood vessel in fetal heart between pulmonary artery and aorta; shunts blood from right to left due to high pulmonary vascular resistance allows most of blood coming from r. ventricle to bypass lungs (which are not functioning in fetus) foramen ovale - CORRECT ANSWER -hole connecting the atria in fetal heart; shunts blood from right to left (due to high pulmonary vascular resistance) acts as another route for blood to bypass the lungs (along with ductus arteriosis) purpose of surfactant in lungs - CORRECT ANSWER -reduces surface tension in the alveolar fluid - air (CO2/O2) has to travel through layer of fluid in order to diffuse oxygen saturation monitoring location for neonatal resuscitation & O2 sat %'s after birth (1, 2, 3, 4, 5, and 10 mins) - CORRECT ANSWER -upper right arm (preductal location) 1 min: 60-65% 2 min: 65-70% 3 min: 70-75% 4 min: 75-80%