A patient in labor has a fetal heart rate with late decelerations.
Which of the following are appropriate intrauterine resuscitation measures? Select all that apply.

Choice A rationale

Bradycardia, or a slow heart rate, is not a typical immediate side effect of an epidural block. The primary cardiovascular risk is vasodilation below the level of the block, which can cause a sudden decrease in systemic vascular resistance and a drop in blood pressure. Bradycardia is more commonly associated with other conditions, not as a direct primary effect of epidural administration.

Choice B rationale

Fetal tachycardia is not an expected or most important immediate adverse effect of an epidural block. While maternal fever and subsequent fetal tachycardia can occur later with epidural use, the most critical immediate maternal side effect that requires vigilant monitoring is hypotension, which can lead to decreased placental perfusion and subsequent fetal distress.

Choice C rationale

The most important nursing intervention following an epidural block is to monitor the patient's blood pressure for hypotension. The epidural causes vasodilation of the blood vessels below the level of the block, leading to a decrease in systemic vascular resistance and venous return. This can cause a sudden and significant drop in blood pressure, which can decrease placental perfusion and compromise fetal oxygenation.

Choice D rationale

Limiting parenteral fluids is not an appropriate intervention; in fact, the opposite is true. A bolus of intravenous fluids is often administered before the epidural to expand the maternal blood volume and help mitigate the risk of hypotension. Limiting fluids would exacerbate the risk of hypotension and its associated complications for both the mother and fetus. *.

Choice A rationale

A first-degree laceration involves only the perineal skin and vaginal mucous membrane, while a second-degree laceration extends into the perineal body muscles. This explanation describes a second-degree tear, which goes beyond the skin but does not involve the rectal sphincter. A third-degree tear involves the external anal sphincter muscle and is a more extensive injury than described.

Choice B rationale

A fourth-degree laceration involves the rectal mucosa, extending through the external anal sphincter. The description of a tear that extends to the muscle around the rectum, but not necessarily through the mucosa, is closer to a third-degree tear. However, a third-degree tear specifically involves the anal sphincter muscle itself, which is what this answer choice is attempting to describe.

Choice C rationale

A third-degree laceration is defined as a tear that extends through the perineal skin, vaginal mucosa, and perineal muscles, and involves the external anal sphincter. This description accurately explains the anatomical location and depth of a third-degree tear, which is a significant injury requiring careful surgical repair. The rectum is distinct from the anal sphincter.

Choice D rationale

Uterine rupture is a rare but serious obstetrical emergency where the uterine wall tears during pregnancy or labor, often at the site of a previous cesarean scar. It is a life-threatening event for both mother and fetus and is not a laceration sustained during vaginal birth. Lacerations occur in the birth canal, not the uterus, and result from the stretching of tissues as the baby is born.