Post-term fetal risks include all of the following, EXCEPT: Select one:
Macrosomic newborn.
Intrauterine growth restriction (IUGR).
Umbilical cord prolapse.
Meconium Aspiration Syndrome (MAS).
The Correct Answer is C
Choice A Reason: Macrosomic newborn. This is a correct answer that describes a possible complication of post-term pregnancy. A macrosomic newborn is a newborn that weighs more than 4000 grams or 8 pounds 13 ounces at birth. It can occur in post-term pregnancies due to prolonged exposure to maternal glucose and insulin. It can increase the risk of birth injuries, shoulder dystocia, cesarean delivery, and hypoglycemia.
Choice B Reason: Intrauterine growth restriction (IUGR). This is a correct answer that indicates a potential problem of post-term pregnancy. IUGR is a condition where the fetal growth is slower than expected for gestational age. It can occur in post-term pregnancies due to placental insufficiency, aging, or calcification, which can impair nutrient and oxygen delivery to the fetus. It can increase the risk of fetal distress, hypoxia, acidosis, and stillbirth.
Choice C Reason: Umbilical cord prolapse. This is an incorrect answer that does not reflect a risk of post-term pregnancy, but rather a risk of other factors such as prematurity, low birth weight, breech presentation, multiple gestation, polyhydramnios, or artificial rupture of membranes.
Choice D Reason: Meconium Aspiration Syndrome (MAS). This is a correct answer that denotes a possible complication of post-term pregnancy. MAS occurs when fetal stool (meconium) enters into the lungs before or during birth, causing airway obstruction, inflammation, and infection. MAS usually affects term or post-term infants who experience fetal distress or hypoxia in utero. It can cause respiratory distress syndrome (RDS), persistent pulmonary hypertension (PPHN), or chronic lung disease (CLD).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason: Enhance uterine contractions. This is an incorrect answer that contradicts the effect of narcotic analgesia on uterine activity. Narcotic analgesia can reduce uterine contractions by decreasing maternal catecholamine levels, which can prolong labor or increase bleeding.
Choice B Reason: Be used in place of preoperative sedation. This is an irrelevant answer that does not apply to this scenario. Preoperative sedation is a medication given before surgery to reduce anxiety, pain, or nausea. Narcotic analgesia can be used as a preoperative sedative, but it is not related to labor or delivery.
Choice C Reason: Result in neonatal respiratory depression. This is because narcotic analgesia can cross the placenta and affect the fetal central nervous system, which can cause decreased respiratory drive, apnea, bradycardia, or hypotonia in the newborn. The risk of neonatal respiratory depression is higher when narcotic analgesia is administered close to delivery, as there is less time for placental clearance or maternal metabolism.
Choice D Reason: Prevent the need for anesthesia with an episiotomy. This is an inaccurate answer that overestimates the effect of narcotic analgesia on perineal pain. Narcotic analgesia can provide some relief of labor pain, but it does not block pain sensation completely or locally. An episiotomy is a surgical incision made in the perineum to enlarge the vaginal opening during delivery, which requires local anesthesia or regional anesthesia (such as epidural or spinal). Narcotic analgesia does not prevent or replace anesthesia with an episiotomy.
Correct Answer is D
Explanation
Choice A Reason: Retained placental fragments. This is an incorrect answer that refers to a different cause of late postpartum hemorrhage, which is less common than uterine atony. Retained placental fragments are pieces of placenta that remain atached to the uterine wall after delivery, which prevent uterine contraction and involution, and provide a source of bleeding and infection. Retained placental fragments can be caused by abnormal placentation (such as placenta accreta), manual removal of placenta, or incomplete separation of placenta.
Choice B Reason: Cervical or vaginal lacerations. This is an incorrect answer that refers to a different cause of late postpartum hemorrhage, which is more likely to cause early postpartum hemorrhage than late postpartum hemorrhage. Cervical or vaginal lacerations are tears or cuts in the cervix or vagina that occur during delivery, which can cause bleeding from the damaged blood vessels. Cervical or vaginal lacerations can be caused by rapid or instrumental delivery, large or malpositioned fetus, or episiotomy.
Choice C Reason: Uterine inversion. This is an incorrect answer that refers to a different cause of late postpartum hemorrhage, which is rare and life-threatening. Uterine inversion is a condition where the uterus turns inside out and protrudes through the cervix and vagina after delivery, which can cause massive bleeding and shock. Uterine inversion can be caused by excessive traction on the umbilical cord, fundal pressure, or uterine relaxation.
Choice D Reason: Uterine atony. This is because uterine atony is a condition where the uterus fails to contract and retract after delivery, which leads to bleeding from the placental site. Uterine atony is the most common cause of late postpartum hemorrhage, accounting for about 75% of cases. Late postpartum hemorrhage is excessive bleeding from the uterus or genital tract that occurs more than 24 hours but less than 12 weeks after delivery. Late postpartum hemorrhage can be caused by retained placental fragments, subinvolution of the uterus, infection, or coagulation disorders.
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