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Maternal health and individual physiology, pregnancy complications, and
maternal behaviors affect the health of the fetus
*Diabetes mellitus
*Previous pregnancy complications
*Age of mother (<17 or >35 years)
*Smoking or drug use
Ultrasonography:
Allows the view of:
position of the fetus and placenta
measures fetal growth
identifies possible anatomic anomalies
assesses the amniotic fluid qualitatively
Amniocentesis:
* Allows analysis of amniotic fluid to determine genetics or presence of
meconium
* Lung maturation by assessing L/S ratio
• >2:1 mature lungs
• Occurs ~35 weeks
PIP and VT
PIP between 20-25 cm H2O
VT targeted at 6-8 ml/kg
VT to 4-5 ml/kg in ARDS
Lung maturation by assessing L/S ratio
, • >2:1 mature lungs
• Occurs ~35 weeks
Fetal heart rate monitoring during labor, monitors
the level of infant distress
Fetal blood gas analysis during delivery, if the fetus is in distress, acidosis
may indicate
asphyxia
Infants presenting with a monotonous heart rate or a fetal scalp pH less
than
7.2 may be experiencing asphyxia
Fetal Assessment:
Ultrasonography
Amniocentesis
Fetal Heart Rate Monitoring
Fetal Blood Gas Analysis during Deliver
Infants presenting with monotonous heart rate or fetal scalp pH less than
7.2
Most newborns (>90%) do not need
intervention when transitioning from intrauterine to extrauterine life
Two categories of newborns most likely to need intervention:
- Infants born with evidence of meconium in their airway
- Premature infants
Meconium
-The infant's first stool
-A sticky green-black substance that, if inhaled by the infant, can cause
significant respiratory problems