Week 5 pre assignment.docx - Week 5 pre-assignment Chapter...

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Week 5 pre-assignment Chapter 7 High Risk Antepartum nursing care, discharge planning, and teaching o Preterm labor and birth Preterm labor (PTL) is the onset of labor before 37 weeks’ gestation. Preterm birth (PTB) refers to gestational age at birth of less than 37 weeks. Preterm birth is a complex cluster of problems with a set of overlapping factors of influence. Its causes may include individual level behavioral and psychosocial factors, neighborhood characteristics, environmental exposures, medical conditions, infertility treatments, biological factors, and genetics Late preterm infant: An infant born between 34 and 36 weeks of gestation Very preterm infant: An infant born before 32 completed weeks of gestation Low birth weight infant (LBW): An infant who weighs less than 2,500 grams at delivery, regardless of gestational age; among low birth weight infants, two thirds are preterm. Very low birth weight infant: An infant who weighs less than 1,500 grams at birth Extremely low birth weight infant: An infant who weighs less than 1,000 grams at birth o Preterm premature rupture of membranes and chorioamnionitis Preterm premature rupture of membranes (PPROM) is rup- ture of membranes with a premature gestation (<37 weeks). It occurs in about 3% of pregnancies yet is responsible for about 30% of all preterm births. Premature rupture of membranes is defined as rupture of the chorioamniotic membranes before the onset of labor but at term. Adding to the confusion is prolonged rupture of membranes, which is greater than 24 hours (PROM) o Incompetent cervix Incompetent cervix is classically defined as a mechanical defect in the cervix that results in painless cervical dilation in the second trimester that
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can progress to ballooning of the membranes into the vagina and delivery of a premature fetus o Multiple gestation Multiple gestation pregnancies are pregnancies with more than one fetus.
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