Uterine Inversion Practice Exam

EXPLANATION

✔Correct answer:

Laceration of soft tissues of the cervix and vagina. When the uterus is firm and contracted yet vaginal bleeding persists, the most likely cause is a laceration of the soft tissues of the cervix or vagina. After childbirth, lacerations can occur in the cervix, vagina, or perineum, and these can lead to significant bleeding even when the uterus is well-contracted. Unlike uterine atony, where the bleeding is due to a lack of uterine tone, bleeding from lacerations occurs because of tears in the tissues, which the contracted uterus cannot control.

During delivery, particularly if it is rapid or assisted (e.g., with forceps or vacuum), the tissues of the cervix, vagina, or perineum may tear. These lacerations can result in bleeding that continues even after the uterus has contracted. Since the uterus is firm and well-contracted in this scenario, the source of the bleeding is likely not the uterus itself, but rather these tissue lacerations.

Imagine a well-sealed water bottle (firm uterus). If there’s still water leaking out (vaginal bleeding), it’s not because the bottle is leaking, but because there’s a crack somewhere else (laceration in the soft tissues).

Nurse Thompson should closely examine the patient for any signs of lacerations or tears in the cervix, vagina, or perineum. If a laceration is identified, the bleeding site may require suturing or other interventions to control the bleeding. Additionally, monitoring vital signs and the amount of blood loss is essential to ensure the patient remains stable.

✘Incorrect answer options:

Uterine atony. Uterine atony is the leading cause of postpartum hemorrhage, where the uterus fails to contract adequately, leading to heavy bleeding. However, in this case, the uterus is firm and contracted, which rules out uterine atony as the cause of bleeding.

Uterine inversion. Uterine inversion is a rare but serious complication where the uterus turns inside out, often associated with pulling on the umbilical cord before the placenta has detached. This condition would typically present with severe pain and shock rather than a firm, contracted uterus with persistent vaginal bleeding.

Uterine hypercontractility. Uterine hypercontractility refers to excessively strong or frequent contractions, which can occur during labor but is not typically associated with persistent postpartum bleeding, especially when the uterus is already well-contracted postpartum.

EXPLANATION

✔Correct answer:

Prevent the uterus from inverting. Nurse Amanda's primary goal in using both hands while assessing the fundus is to prevent the uterus from inverting. Uterine inversion is a rare but serious complication that can occur if excessive force is applied to the uterus during the postpartum period, particularly if the uterus is not properly supported.

During a fundal assessment, the nurse typically uses one hand to palpate the fundus and the other hand to support the lower segment of the uterus, near the pubic symphysis. This technique ensures that the uterus is stabilized and supported, reducing the risk of the fundus being pushed downward or inverted during palpation.

Imagine holding a balloon filled with water (the uterus). If you press down on the top (the fundus) without supporting the bottom, the water might push downward, changing the shape or even inverting the balloon. Supporting the base while pressing on the top helps maintain its shape and prevents any sudden changes.

During postpartum fundal assessment, the nurse should always use one hand to support the lower part of the uterus while using the other hand to palpate the fundus. This practice not only prevents uterine inversion but also helps in accurately assessing the tone and position of the uterus to ensure proper postpartum recovery.

✘Incorrect answer options:

Encourage the uterus to return to its normal size. While fundal massage can help encourage uterine contraction and involution, the use of both hands in this context is primarily for preventing uterine inversion, not directly for aiding the uterus in returning to its normal size.

Speed up the postpartum recovery process. Postpartum recovery involves many factors, including uterine involution, lactation, and overall maternal health. The two-handed technique during fundal assessment specifically aims to prevent complications like uterine inversion rather than directly speeding up recovery.

Measure the size of the uterine fundus. Measuring the size and height of the uterine fundus is part of postpartum assessment, but the two-handed technique is not primarily used for measurement. It is used for safety to prevent uterine inversion during the assessment.

EXPLANATION

✔Correct answer:

Forcefully pulling on the umbilical cord to expedite the delivery of the placenta. The action that Nurse Kelly should recognize as potentially leading to uterine inversion is forcefully pulling on the umbilical cord to expedite the delivery of the placenta. Uterine inversion is a rare but life-threatening complication that occurs when the uterus turns inside out, often due to excessive traction on the umbilical cord before the placenta has naturally separated from the uterine wall. This can cause the fundus of the uterus to be pulled downward, leading to inversion.

Uterine inversion typically happens when there is an undue downward force applied to the uterus, usually through excessive pulling on the umbilical cord. This can cause the fundus (top part of the uterus) to collapse and turn inside out, potentially resulting in severe hemorrhage, shock, and other life-threatening complications.

Imagine pulling too hard on a sock to remove it, and it turns inside out. Similarly, forcefully pulling on the umbilical cord before the placenta has fully detached can turn the uterus inside out, leading to uterine inversion.

To prevent uterine inversion, it is critical to avoid applying strong traction on the umbilical cord until the placenta has completely separated from the uterine wall. The placenta should be delivered naturally or with gentle traction only after signs of placental separation, such as a lengthening of the umbilical cord and a gush of blood, are observed. Additionally, the fundus should be supported when applying gentle traction to avoid downward force on the uterus.

✘Incorrect answer options:

Applying fundal pressure to help the mother push during the delivery of the fetal head. Applying fundal pressure during the delivery of the fetal head is generally not recommended as it may cause other complications, but it is not typically associated with uterine inversion. However, it's still an incorrect practice because it can lead to other issues such as uterine rupture or fetal injury.

Massaging the fundus to stimulate uterine contractions. Massaging the fundus after delivery is a recommended practice to stimulate uterine contractions and prevent postpartum hemorrhage. It helps the uterus contract and reduces the risk of excessive bleeding. This action does not cause uterine inversion.

Gently applying traction when the placenta has already separated from the uterine wall. Gently applying traction on the umbilical cord after the placenta has completely separated from the uterine wall is a standard part of active management of the third stage of labor. It does not typically lead to uterine inversion if done properly and after confirmation of placental separation.

EXPLANATION

✔Correct answer:

Prolonged labor and use of oxytocin. Nurse Sarah should emphasize prolonged labor and the use of oxytocin as significant risk factors for postpartum hemorrhage (PPH). Postpartum hemorrhage is one of the most serious complications after childbirth and is commonly caused by uterine atony, where the uterus fails to contract effectively after delivery.

Prolonged labor can exhaust the uterine muscles, leading to inadequate contractions post-delivery, which increases the risk of uterine atony and excessive bleeding.

While oxytocin is commonly used to induce or augment labor, its overuse or high doses during a prolonged labor can lead to uterine muscle fatigue, increasing the likelihood of PPH due to uterine atony after delivery.

Imagine a rubber band (the uterus) being stretched for a long time (prolonged labor). If you keep pulling on it (using oxytocin to contract), eventually, it may lose its elasticity (muscle tone) and fail to snap back to its original size, leading to bleeding.

Nurses should monitor patients who had prolonged labor or high-dose oxytocin use closely for signs of PPH, such as excessive vaginal bleeding, a boggy uterus, or a rapid drop in blood pressure. Prompt interventions, including uterine massage, administration of additional oxytocin, or other uterotonic agents, and preparing for possible surgical interventions, may be necessary.

✘Incorrect answer options:

Low birth weight and early ambulation. Low birth weight is generally not a direct risk factor for postpartum hemorrhage. Early ambulation is encouraged postpartum to prevent complications such as deep vein thrombosis (DVT) and does not contribute to PPH risk.

Cesarean delivery and breastfeeding initiation. While cesarean delivery can increase the risk of hemorrhage due to surgical factors, breastfeeding initiation is not associated with an increased risk of PPH. In fact, breastfeeding promotes the release of natural oxytocin, which helps the uterus contract and reduces bleeding.

Advanced maternal age and limited prenatal care. Advanced maternal age and limited prenatal care can increase the risk of various complications during pregnancy and delivery, but they are not directly related to PPH risk factors like uterine atony. The use of oxytocin and prolonged labor are more direct contributors to the development of PPH.

EXPLANATION

✔Correct answer:

Uterine atony. Nurse Roberts should be most vigilant about uterine atony. Uterine atony is the leading cause of postpartum hemorrhage, a potentially life-threatening complication. It occurs when the uterus fails to contract effectively after childbirth, leading to excessive bleeding. Several factors in the patient's history increase her risk for uterine atony, including the difficult and prolonged labor, the use of forceps, the administration of oxytocin (Pitocin) for labor augmentation, and the delivery of twins.

The uterus typically contracts after delivery to compress the blood vessels at the site where the placenta was attached, which helps to prevent excessive bleeding. When the uterine muscles do not contract adequately (uterine atony), these blood vessels remain open, resulting in significant blood loss. Oxytocin is used to stimulate contractions, but overuse or prolonged labor can lead to uterine muscle fatigue, increasing the risk of atony.

Imagine a balloon (the uterus) that needs to shrink back to its original size after being inflated. If the balloon is too tired to contract after being stretched out for a long time (prolonged labor), it can't tighten up properly, and air (blood) keeps leaking out. In the uterus, if it doesn't contract, blood vessels stay open, leading to heavy bleeding.

Nurse Roberts should closely monitor the patient’s uterine tone, fundal height, and lochia (vaginal discharge after birth) for signs of excessive bleeding. If uterine atony is suspected, immediate interventions may include uterine massage, administration of additional oxytocin or other uterotonic medications (like methylergonovine or carboprost), and alerting the healthcare team for possible further interventions.

✘Incorrect answer options:

Uterine inversion. Uterine inversion is a rare but serious complication where the uterus turns inside out, often associated with pulling on the umbilical cord before the placenta has detached. While it is a possible complication, it is far less common than uterine atony, especially given the described scenario.

Uterine involution. Uterine involution refers to the normal process of the uterus returning to its pre-pregnancy size after childbirth. This is not a complication but rather a normal physiological process. Therefore, it is not something to be "vigilant" about in the sense of it being a potential problem.

Uterine discomfort. Uterine discomfort can occur after childbirth due to contractions as the uterus returns to its normal size. However, it is not a serious complication like uterine atony and is typically managed with pain relief. It is not the primary concern in this scenario.