PLACENTA PREVIA

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6 Terms

1
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what is placenta previa?

  • an improper implanted placenta in the lower uterine segment near or over the internal cervical opening

  • types: total, partial, marginal

<ul><li><p>an improper implanted placenta in the lower uterine segment near or over the internal cervical opening</p></li><li><p>types: total, partial, marginal</p></li></ul>
2
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what is total (complete) placenta previa?

the cervical os is covered entirely by placenta when cervix is dilated fully

3
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what is a partial placenta previa?

the lower border of the placenta is within 3cm if the cervical os but does not totally cover it

4
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what is marginal (low-lying) placenta previa?

placenta is implanted in the lower uterus but the lower border is more than 3 cm from cevical os

5
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what are clinical manifestations of placenta previa?

  • sudden onset painless bright red vaginal bleeding (last half of pregnancy)

  • uterus is soft, relaxed, nontender

  • fundal height may be more than expected for gestational age

6
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what are interventions for placenta previa?

  • monitor maternal VS, fetal heart rate and fetal activity

  • prepare for ultrasound to confirm diagnosis

  • do not perform vaginal examination

  • maintain sidelying position

  • monitor bleeding and treat shock

  • admin IV fluids, blood products, tocolytic