A nurse is teaching a newly licensed nurse about the uses of ultrasonography in the first trimester of pregnancy. Which of the following statements by the newly licensed nurse indicates an understanding of the teaching?

Choice A rationale:

Amniotic fluid embolism is a rare but serious complication during labor or immediately after delivery, where amniotic fluid, fetal cells, hair, or other debris enter the mother's bloodstream and cause a severe reaction. While it may present with sudden and severe symptoms, such as hypotension and respiratory distress, it does not typically cause uterine rupture.

Choice B rationale:

Uterine rupture is a life-threatening emergency that can occur during labor, especially in women with previous uterine surgeries or trauma. The sudden, severe lower abdominal pain, drop in blood pressure, cool skin, and pallor could indicate internal bleeding and shock, which are consistent with uterine rupture. Prolonged bradycardia on the fetal heart rate tracing suggests fetal distress due to compromised blood flow.

Choice C rationale:

Umbilical cord prolapse is another obstetric emergency that occurs when the umbilical cord slips through the cervix and gets compressed during labor, leading to fetal distress. It may cause variable decelerations in fetal heart rate, but it does not explain the maternal symptoms described in the scenario, such as the sudden, severe lower abdominal pain, hypotension, cool skin, and pallor.

Choice D rationale:

Placenta previa is a condition where the placenta covers part or all of the cervix, and it can lead to painless vaginal bleeding. While it can cause fetal distress, it does not explain the maternal symptoms like the sudden, severe lower abdominal pain, hypotension, cool skin, and pallor. Prolonged bradycardia on the fetal heart rate tracing is more suggestive of uterine rupture.

The correct answer is choice A, administer broad-spectrum antibiotics.

Choice A rationale:

Administering broad-spectrum antibiotics is crucial for a newborn with a myelomeningocele that is leaking cerebrospinal fluid to prevent infection. The leaking of cerebrospinal fluid can increase the risk of meningitis, which is an infection of the membranes covering the brain and spinal cord. Broad-spectrum antibiotics are used as a prophylactic measure to reduce this risk.

Choice B rationale:

Monitoring the rectal temperature every 4 hours is important for detecting fever, which could indicate infection. However, it is not the most immediate action required for a newborn with a leaking myelomeningocele. The priority is to prevent infection through the administration of antibiotics.

Choice C rationale:

Cleansing the site with povidone-iodine is not recommended for a myelomeningocele because it can be toxic to the exposed neural tissue. Instead, the area should be covered with a sterile saline dressing to protect the site and prevent drying and further damage to the neural tissue.

Choice D rationale:

While surgical closure is necessary for a newborn with myelomeningocele, it is typically performed within 24 to 48 hours after birth, not after 72 hours. Early closure is essential to reduce the risk of infection and further damage to the exposed spinal cord and nerves.