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Amniotic / Placenta


What is the average volume of amniotic fluid at term 800 mL
How is oligohydramnios determined Identification of the largest pocket of fluid measuring less than 2cmx 2cm or the total of 4 quadrants less than 5 cm
What is oligohydramnios associated with SGA fetus, renal tract abnormalities (renal agenesis), and urinary tract dysplasia
The clinical manifestation of oligohydramnios is a direct result of __ The impairment of urine flow ot the amniotic fluid in the late part of the first half of pregnancy or during the second and third trimesters
What is the most common autosomal trisomy and what is the rate Trisomy 21 (Down syndrome) 1 in 600 live births
What is the second most common autosomal trisomy and what is the rate Trisomy 18 (Edward’s syndrome) 1 in 6000-8000 live births
Turner’s syndrome is associated with an average birthweight of approximately __ below average 400g
Fetuses with neural tube defects are frequently IUGR weighing approximately 250g less than controls
Partial or complete detachment of placenta from uterine wall, after 20 weeks gestation Abruptio Placenta
What are some risk factors of abruptio placenta Cocaine use, maternal hypertension, trauma
Placenta previa is __ bleeding Painless/silent
Placenta abruption is __ bleeding painful
When is amniocentesis performed? 15-20 weeks for karyotyping (for Down syndrome)
Created by: Abarnard