At 3 weeks postpartum, a patient calls the nurse on the triage line at the OB clinic.

The patient states that she is now experiencing a whitish vaginal discharge.

The nurse correctly explains to the patient:

Choice A rationale

A labor that lasts 2.5 hours is considered a precipitous labor. A precipitous labor is a risk factor for postpartum hemorrhage because the rapid delivery can lead to uterine atony, as the uterus may not have time to contract effectively after birth. The uterine muscles can become fatigued and fail to clamp down on the blood vessels, leading to excessive bleeding. The rapid labor also increases the risk of cervical and perineal lacerations, which can contribute to significant blood loss.

Choice B rationale

Induction of labor with oxytocin, or Pitocin, can increase the risk of postpartum hemorrhage. The synthetic oxytocin can overstimulate the uterine muscles, leading to uterine hypertonus and muscle fatigue. After delivery, these over-stimulated muscles may be less responsive to endogenous oxytocin, resulting in uterine atony, which is the most common cause of postpartum hemorrhage. The sustained, forceful contractions can exhaust the myometrium, hindering its ability to contract and constrict blood vessels post-delivery.

Choice C rationale

Oligohydramnios is a condition characterized by abnormally low amniotic fluid volume. It is not directly linked to an increased risk of postpartum hemorrhage. The condition is often associated with issues such as fetal kidney problems, growth restriction, and placental insufficiency, which can lead to complications during pregnancy and labor. However, oligohydramnios itself does not have a direct physiological mechanism that would cause the uterus to fail to contract or increase bleeding after childbirth.

Choice D rationale

A small for gestational age (SGA) baby is not a primary risk factor for postpartum hemorrhage. The size of the baby does not directly affect the uterine muscle's ability to contract post-delivery. In contrast, a large for gestational age (LGA) baby, or macrosomia, can be a significant risk factor for hemorrhage because the overdistended uterus may struggle to contract back to its normal size, leading to uterine atony. A SGA baby may be a sign of placental or fetal issues, but it does not directly predispose a woman to hemorrhage.

Choice E rationale

A triplet pregnancy significantly increases the risk for postpartum hemorrhage. The immense overdistention of the uterus from carrying multiple fetuses leads to severe stretching of the uterine muscles. Following birth, these overstretched muscles have a reduced ability to contract and clamp down on blood vessels. This uterine atony is a primary cause of postpartum hemorrhage. The increased placental surface area also poses a higher risk for bleeding.

Choice A rationale

The patient's description of a whitish vaginal discharge at 3 weeks postpartum is a normal finding. This discharge, known as lochia alba, typically begins around week two and can persist for up to six weeks postpartum. Lochia alba consists of leukocytes, decidual cells, epithelial cells, and bacteria, indicating the final stage of uterine involution and healing.

Choice B rationale

The patient's discharge is not lochia serosa. Lochia serosa is a pinkish or brownish discharge that typically occurs from around day 3 to 10 postpartum. It consists of old blood, serum, leukocytes, and tissue debris. The timing and color described by the patient are consistent with lochia alba, not lochia serosa.

Choice C rationale

The patient's description is consistent with lochia alba, but the timing is incorrect. Lochia alba is a normal finding at 3 weeks postpartum and typically occurs from weeks 2 to 6, not just the first week. The presence of lochia alba indicates the final phase of uterine involution and is an expected finding.

Choice D rationale

A whitish discharge at 3 weeks postpartum is a normal and expected finding. There is no need for the patient to be seen by a provider immediately unless the discharge has a foul odor, is associated with a fever, or is accompanied by other signs of infection. This is a normal part of the postpartum recovery process.