Fetal Malposition Anomalies in Labor
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Questions and Answers

What is the primary issue in cephalopelvic disproportion?

  • Maternal diabetes mellitus
  • Open neural tube defects
  • Excessive fetal size
  • Malposition of the fetal presenting part (correct)
  • What maternal condition is associated with fetal macrosomia?

  • Maternal asthma
  • Maternal anemia
  • Maternal hypertension
  • Maternal obesity (correct)
  • What can cause pelvic deformities according to the text?

  • Genetic inheritance
  • Lack of prenatal vitamins
  • Excessive physical exercise during pregnancy
  • Vehicular accidents or trauma (correct)
  • In cases of cephalopelvic disproportion, which of the following is NOT mentioned as a possible maternal origin cause?

    <p>Maternal hypertension</p> Signup and view all the answers

    What is one example of a fetal anomaly that can lead to dystocia?

    <p>Open neural tube defects</p> Signup and view all the answers

    True or False: Fetal macrosomia is always caused by excessive fetal size.

    <p>False</p> Signup and view all the answers

    What is the most common fetal malposition reported in labor and birth?

    <p>Occipitoposterior position</p> Signup and view all the answers

    What is the percentage of labors where breech presentation occurs?

    <p>3% to 4%</p> Signup and view all the answers

    What is the characteristic of a frank breech presentation?

    <p>Hips flexed, knees extended</p> Signup and view all the answers

    Which type of gestation involves twins, triplets, quadruplets, or more infants?

    <p>Multifetal gestation</p> Signup and view all the answers

    What percentage of all live births in the United States in 2017 involved infants born as multiples?

    <p>3.4%</p> Signup and view all the answers

    Which fetal malposition is characterized by one or both hips being partially or fully extended?

    <p>Footling breech</p> Signup and view all the answers

    What is the defining characteristic of precipitous labor?

    <p>Labor lasting less than 3 hours</p> Signup and view all the answers

    Which of the following conditions can be associated with hypertonic uterine contractions resulting in precipitous labor?

    <p>Placental abruption</p> Signup and view all the answers

    What may result from pelvic contractures that reduce the capacity of the bony pelvis?

    <p>Pelvic dystocia</p> Signup and view all the answers

    Which maternal complication is NOT associated with precipitous labor?

    <p>Delayed postpartum hemorrhage</p> Signup and view all the answers

    What is the usual method for managing malpresentation in multifetal pregnancies?

    <p>Cesarean birth</p> Signup and view all the answers

    What predisposes some adolescent mothers to pelvic dystocia?

    <p>Congenital abnormalities</p> Signup and view all the answers

    What is the nurse's role in twin gestations to assist with the birth of the second fetus?

    <p>Monitoring fetal status and providing support</p> Signup and view all the answers

    Which fetal complication can result from precipitous labor?

    <p>Hypoxia</p> Signup and view all the answers

    What procedure is used most often in twin gestations to assist with the birth of the second fetus?

    <p>Internal version</p> Signup and view all the answers

    What is a risk associated with operative vaginal births using forceps or vacuum?

    <p>Higher risk of maternal and fetal injury</p> Signup and view all the answers

    In multifetal pregnancies, what is the potential risk related to internal version?

    <p>Increased risk of maternal and fetal injury</p> Signup and view all the answers

    What is the purpose of External Cephalic Version (ECV) mentioned in the text?

    <p>To turn the fetus from a breech or shoulder presentation to a vertex presentation</p> Signup and view all the answers

    At what gestational age is External Cephalic Version (ECV) usually attempted?

    <p>36-37 weeks</p> Signup and view all the answers

    Why did the number of multiple gestation pregnancies rise dramatically in the 1980s and 1990s according to the text?

    <p>Due to more women older than age 35 continuing childbearing</p> Signup and view all the answers

    What is Internal Version as described in the text?

    <p>Turning the fetus by inserting a hand into the uterus and changing presentation</p> Signup and view all the answers

    Why are women aged 35 years and older naturally more likely to have a multiple gestation pregnancy according to the text?

    <p>Due to assisted reproductive technology and their continued childbearing</p> Signup and view all the answers

    What is the success rate for External Cephalic Version (ECV) at 36 to 37 weeks of gestation?

    <p>~65%</p> Signup and view all the answers

    Study Notes

    Cephalopelvic Disproportion

    • Primary issue: Fetal head or body is too large to fit through the maternal pelvis
    • Associated maternal condition: Maternal pelvic deformities or small pelvis

    Fetal Macrosomia

    • Associated maternal condition: Diabetes and excessive fetal size are not the only causes
    • Not always caused by excessive fetal size

    Pelvic Deformities

    • Can be caused by: Rickets, osteomalacia, or a congenital anomaly

    Dystocia

    • Can be caused by: Fetal anomalies, such as hydrocephalus
    • Most common fetal malposition: Occiput posterior position
    • Percentage of labors with breech presentation: 3-4%
    • Characteristic of frank breech presentation: Fetus's legs are folded in front of their body

    Multiple Gestations

    • Type of gestation involving twins, triplets, quadruplets, or more infants: Multifetal gestation
    • Percentage of live births in the United States in 2017 involving multiples: 3.4%

    Fetal Malposition

    • Characterized by one or both hips being partially or fully extended: Footling breech presentation

    Precipitous Labor

    • Defining characteristic: Labor lasting less than 3 hours
    • Associated with: Hypertonic uterine contractions
    • Can result from: Pelvic contractures reducing the capacity of the bony pelvis
    • Not associated with: Hypotension

    Multifetal Pregnancies

    • Usual method for managing malpresentation: External Cephalic Version (ECV)
    • Predisposing factor in adolescent mothers: Pelvic dystocia
    • Nurse's role in twin gestations: Assisting with the birth of the second fetus
    • Potential fetal complication: Birth asphyxia

    Operative Vaginal Births

    • Risk associated with: Instrumental delivery

    Internal Version

    • Potential risk in multifetal pregnancies: Fetal injury or death

    External Cephalic Version (ECV)

    • Purpose: To turn the fetus into a vertex position
    • Usual gestational age: 36-37 weeks
    • Success rate at 36-37 weeks of gestation: 50-70%

    Multiple Gestation Pregnancies

    • Rise in the 1980s and 1990s due to: Increased use of assisted reproductive technology
    • Internal Version: A procedure that involves manually turning the fetus into a vertex position
    • Women aged 35 years and older are naturally more likely to have a multiple gestation pregnancy due to: Hormonal changes that increase the release of multiple eggs during ovulation

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    Description

    This quiz covers the topic of fetal malposition anomalies during labor, focusing on the most common persistent occipitoposterior position. Learn about the impact of these anomalies on the labor process.

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