A nurse has received a report about a patient in labor.
The patient's last vaginal examination was recorded as 3 cm, 30%, and -2. What is the nurse's interpretation of this assessment?

Choice A rationale

Fetal tachycardia is defined as a sustained baseline fetal heart rate above 160 beats per minute for ten minutes or longer. This elevated heart rate is an early sign of fetal hypoxemia, which can be caused by maternal fever, infection, dehydration, or certain medications. The increased heart rate is a compensatory mechanism to improve cardiac output.

Choice B rationale

A normal fetal baseline heart rate falls within the range of 110 to 160 beats per minute. This range reflects a healthy balance between the sympathetic and parasympathetic nervous systems regulating the fetal heart. A rate of 135 bpm is well within this normal range, indicating adequate fetal oxygenation and well-being.

Choice C rationale

Fetal bradycardia is defined as a sustained baseline fetal heart rate below 110 beats per minute for ten minutes or longer. This can be an ominous sign of severe fetal hypoxemia, maternal hypotension, or umbilical cord compression, all of which compromise oxygen delivery to the fetus and warrant immediate intervention.

Choice D rationale

Fetal hypoxia, or oxygen deprivation, is a state where the fetus is not receiving adequate oxygen supply. While both tachycardia and bradycardia can be indicators of hypoxia, a normal heart rate of 135 bpm does not suggest hypoxia. The absence of other non-reassuring signs further supports fetal well-being.

Choice A rationale

Suprapubic pressure involves applying downward pressure just above the pubic bone on the mother's abdomen. This maneuver is used to dislodge the anterior fetal shoulder, which is wedged behind the symphysis pubis. The pressure helps to adduct the fetal shoulder, reducing its diameter and allowing it to pass beneath the pubic bone.

Choice B rationale

MacBeth's maneuver is not a recognized obstetric maneuver for resolving shoulder dystocia. Recognized techniques for this emergency include McRoberts maneuver, suprapubic pressure, and Gaskin's maneuver. The lack of a scientific basis or formal obstetric recognition makes this a non-viable option for clinical practice.

Choice C rationale

Fundal pressure, or applying pressure to the top of the uterus, is contraindicated in cases of shoulder dystocia. This action can further wedge the fetal shoulder against the symphysis pubis, increasing the risk of fetal injury, such as a brachial plexus injury, or causing uterine rupture. It is a dangerous and ineffective maneuver.

Choice D rationale

McRoberts maneuver is a first-line intervention for shoulder dystocia. It involves hyperflexing the mother's hips and bringing her thighs toward her abdomen. This position straightens the sacrum relative to the lumbar spine, which rotates the symphysis pubis cephalad, widening the pelvic inlet and allowing the anterior shoulder to pass more easily.