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Block 11 Neonatal Physiology

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klau253's version from 2017-05-17 22:13

Section

Stages of development
Question Answer
Lungembryonic, pseudoglandular, canalicular, saccular/terminal sac, alveolar
memorize

 

Adaptations for blood to bypass
Question Answer
lungforamen ovale + ductus arteriosus
Foramen ovalefrom RA to LA
Ductus arteriosusfrom pul. arteries to aorta
memorize

 

Adaptations for blood to bypass liver
Question Answer
Ductus venosusfrom umbilical vein to IVC
memorize

 

Circulation changes after birth
Question Answer
systemic vascular resistanceincrease
HeartLV workload increases and increased flow in LA from lungs, decreased flow in RA, foramen ovale closes
LungsPulmonary vascular resistance deceases due to O2 rushing
vascular flow in IVCdecrease
Ductus arteriosuscloses due to increased oxygenation and reduced placental prostaglandin
memorize

 

when adaptation fails
Question Answer
severe lung diseasesurfactant deficiency, congenital pneumonia, meconium aspiration syndrome
congenital cardiactransposition of great arteries, hypoplastic left heart syndrome
Transposition of great arteriesRV connects to aorta while LV connects to pul arteries
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Risk factors of hypoglycaemia and neuroglycopenia
Question Answer
Medicationmaternal use of beta-blockers
Baby conditionseptic, asphyxiated, polycythaemia, premature, growth restricted, inherited metabolic disorder
Maternal conditionDM
memorize