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11 Cards in this Set

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What color should amniotic fluid be?
clear with white flecks of vernix caseosa in a mature fetus.
Bilirubin in amniotic fluid -
Bilirubin is absent at term. High levels indicate hemolytic disease of the fetus in isoimmunized pregnancy.
Meconium presence
Absent except in breech presentation (anoxia).
Presence indicates fetal hypotension or distress.
Creatinine values
More than 2 mg/100ml in a mature fetus.
Decrease may indicate immature fetus - less than 37 weeks.
L/S ratio
Most common test used for maturity. Should be more than 2.
ex. 2/1=2=probably maturity. 3/1=3=almost absolute maturity.
decrease undicates pulmonary immaturity and subsequent respiratory distress syndrome.
phosphatidylglycerol
Present after 35 weeks. Absence indicates pulmonary immaturity.
Glucose
less than 45 mg/100ml
Excessive increases at term or near term indicate hypertrophied fetal pancreas and subsequent neonatal hypoglycemia.
Lipids
more than 20% of lipid coated cells stain orange.
Decrease indicates fetal immaturity.
alpha-fetoprotein
Variable depending on gestational age.
Increases indicate neural tube defects, such as spina bifida or anencephaly, or contamination by blood.
Bacteria
Absent
Presence indicates choriamnionitis
Chromosome
Normal Karyotype
Abnormal may indicate fetal sex and chromosome disorders.