When reviewing the causes of late postpartum hemorrhage, which of the following would the nurse identify as the most common cause?
Select one:
Retained placental fragments.
Cervical or vaginal lacerations.
Uterine inversion.
Uterine atony.
The Correct Answer is D
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.
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 A
Explanation
Choice A Reason: Two arteries, one vein. This is because two arteries and one vein are the normal components of the umbilical cord, which is a structure that connects the fetus to the placenta and provides blood circulation between them. The umbilical cord carries oxygenated blood from the placenta to the fetus through the umbilical vein, and deoxygenated blood from the fetus to the placenta through the umbilical arteries.
Choice B Reason: Two veins, one artery. This is an incorrect answer that indicates an abnormal anatomy of the umbilical cord, which is known as single umbilical artery (SUA). SUA is a condition where there is only one umbilical artery instead of two, which can reduce blood flow and oxygen delivery to the fetus. SUA can be associated with congenital anomalies or growth restriction in some cases.
Choice C Reason: Two veins, two arteries. This is an incorrect answer that indicates an abnormal anatomy of the umbilical cord, which is known as double umbilical vein (DUV). DUV is a condition where there are two umbilical veins instead of one, which can increase blood flow and oxygen delivery to the fetus. DUV can be associated with fetal overgrowth or polycythemia in some cases.
Choice D Reason: One artery, one vein. This is an incorrect answer that indicates an abnormal anatomy of the umbilical cord, which is also known as single umbilical artery (SUA). SUA is a condition where there is only one umbilical artery instead of two, which can reduce blood flow and oxygen delivery to the fetus. SUA can be associated with congenital anomalies or growth restriction in some cases.
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