A nurse is assisting in the care of a client who is in active labor. The nurse notes variable decelerations of the FHR. The nurse should identify which of the following as a cause of variable decelerations?
Fetal head compression
Polyhydramnios
Maternal fever
Umbilical cord compression
The Correct Answer is D
Choice A reason:
Fetal head compression is incorrect, as this factor can cause early decelerations in the fetal heart rate. Early decelerations are symmetrical decreases in the FHR that mirror the contractions, which indicate fetal head compression and vagal stimulation. Fetal head compression occurs as the fetus descends into the birth canal and does not pose a threat to the fetal well-being.
Choice B reason:
Polyhydramnios is incorrect, as this factor can cause variable or late decelerations in the fetal heart rate, depending on the underlying cause. Polyhydramnios refers to an excessive amount of amniotic fluid, which can result from fetal anomalies, maternal diabetes, multiple gestation, or other conditions. Polyhydramnios can cause umbilical cord prolapse, uterine overdistension, or placental abruption, leading to reduced blood flow and oxygen delivery to the fetus.
Choice C reason:
Maternal fever is incorrect, as this factor can cause late decelerations in the fetal heart rate. Late decelerations are symmetrical decreases in the FHR that begin after the peak of the contraction and return to baseline after the contraction ends, which indicate uteroplacental insufficiency. Maternal fever can increase maternal and fetal metabolism and oxygen demand, leading to fetal hypoxia and acidosis.
Choice D reason:
Umbilical cord compression is correct, as this factor can cause variable decelerations in the fetal heart rate. Variable decelerations are abrupt decreases in the FHR that vary in onset, duration, and depth, which indicate umbilical cord compression and reduced blood flow to the fetus. Umbilical cord compression can occur due to cord prolapse, nuchal cord, short cord, or other causes. The nurse should reposition the client, administer oxygen, and prepare for delivery if indicated.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason:
Checking the consistency of the client's uterine fundus is the first action the nurse should take, as it can indicate the cause of excessive bleeding. A boggy or soft fundus indicates uterine atony, which is the most common cause of postpartum hemorrhage. The nurse should massage the fundus until it becomes firm and contracted.
Choice B reason:
Having the client use the bedpan to urinate is an important action, as a full bladder can displace the uterus and prevent it from contracting properly. However, this is not the first action the nurse should take, as it does not address the immediate source of bleeding.
Choice C reason:
Increasing the client's fluid intake is an important action, as it can help replace fluid loss and prevent hypovolemia and shock. However, this is not the first action the nurse should take, as it does not stop the bleeding.
Choice D reason:
Preparing to administer oxytocic medication is an important action, as it can stimulate uterine contractions and reduce bleeding. However, this is not the first action the nurse should take, as it requires a provider's prescription and may not be necessary if fundal massage is effective.
Correct Answer is A
Explanation
Choice A reason: A precipitous birth is a delivery that occurs in less than 3 hours from the onset of labor. This can cause uterine atony, which is the failure of the uterus to contract and compress the blood vessels after the placenta is delivered. Uterine atony is the most common cause of postpartum hemorrhage²³.
Choice B reason: A small for gestational age newborn is not a risk factor for postpartum hemorrhage. It may be associated with other conditions, such as placental insufficiency or intrauterine growth restriction, but these do not directly increase the risk of bleeding after delivery.
Choice C reason: A two-vessel umbilical cord is a cord that has one artery and one vein instead of the normal two arteries and one vein. This can be a marker for congenital anomalies or placental abnormalities, but it does not increase the risk of postpartum hemorrhage by itself.
Choice D reason: Gestational hypertension is a condition where the blood pressure rises above 140/90 mm Hg after 20 weeks of pregnancy. It can lead to complications such as preeclampsia, eclampsia, or HELLP syndrome, which can affect the clotting system and cause bleeding disorders. However, gestational hypertension alone does not increase the risk of postpartum hemorrhage unless it is associated with these severe conditions¹⁴.
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