Amniotic Fluid Flashcards
1
Q
What produces amniotic fluid?
A
kidneys tissues skin membranes pg. E 182
2
Q
How is amniotic fluid removed?
A
GI to GU tract lungs membranes cord pg. E 182
3
Q
What are the functions of amniotic fluid?
A
protective cushion equalization of pressure and temperature prevents adherence to membranes reservoir for fetal metabolites development of fetal lungs pg. E 182
4
Q
What might be echogenic foci floating in amniotic fluid?
A
vernix caseosa
cellular debris
pg. E 182
5
Q
What is a normal AFI?
A
5-22 cm
pg. E 182
6
Q
What is considered oligohydramnios?
A
< 5 cm
pg. E 183
7
Q
What is oligohydramnios associated with?
A
Demise Renal abnormalities IUGR Post dates PROM Pre-elcampsia pg. E 183
8
Q
What is considered polyhydramnios?
A
> 22 cm
vertical pocket 8 cm (mild) - > 16 cm (severe)
pg. E 183
9
Q
What causes polyhydramnios?
A
gestational diabetes Rh incompatibility CNS anomalies GI anomalies facial clefts fetal hydrops twin-to-twin transfusion sacrococcygeal teratoma skeletal dysplasia pg. E 183
10
Q
When is an amniocentesis? typically performed?
A
16 weeks
pg. E 184
11
Q
When else could you perform an amniocentesis?
A
2nd and 3rd tri to access fetal lung maturity
pg. E 184
