Flashcards in small for dates pregnancy and pre term birth Deck (21)
oestrogen and progesterone inhibit milk production
3 stages of labour
10 cervical dilation - should take 8 - 24 hours
2) passage through birth canal (few mind - 30 mins), 3) expulsion of placenta
which hormone causes growth of the ductile system?
which causes development of the lobular system?
which hormone stimulates milk production?
steady rise in this hormone from week 5 until birth
low volume, no fat, first milk produced?
prolactin and oxytocin, which one from anterior and post pituitary
prolActin from anterior, Oxytocin from pOsterior
which one causes milk secretion?
oxytocin, prolactin doesn't cause contraction
pre term birth defined as/
delivery between 24 and 36+6 weeks
aetiology of pre term birth?
brown diagram (polyhydramnios, placental abruption, infection, cervical incompetence, idiopathic, intercurent illness - pyelonephritis/UTI, appendicitis, pneumonia
previous ptl, uterine abnormalities, age, parity, ethnicity, poor se status, smoking, drugs, low BMI
small for gestational age?
an infant with a birthweight that is less than 10th centil for gestation, corrected for maternal weight, height, fetal sex and birth order
intrauterine growth restriction can be maternal factor, fetal factor or placental factor
smoking, alcohol, drugs, height and weight, age, maternal diseases
infection such as rubella, cmv, toxoplasmosis, congenital eg absent kindeys, chromosomal abnormalities eg downs
infarcts, abruption, often secondary to hypertension
IUGR can be symmetrical or non symmetrical
symmetrical = small head small body , assymetrical = normal head small body
consequences of being growth restricted - during birth>
risk of hypoxia and death
hypoglycaemia, effects of asphyxia, hypothermia, polycythaemia, hyperbilirubinaemia, abnormal neurodevelopment