How is fetal well-being during labor assessed?
An FHR greater than 110 beats/min.
Maternal pain control.
The response of the FHR to UCs.
Accelerations in the FHR.
The Correct Answer is C
Choice A reason: An FHR greater than 110 beats/min is not a sufficient indicator of fetal well-being during labor. The normal range of FHR is between 110 and 160 beats/min, but it can vary depending on the gestational age, fetal activity, and maternal factors. A high or low FHR may indicate fetal distress or compromise.
Choice B reason: Maternal pain control is not a direct measure of fetal well-being during labor. However, maternal pain can affect the FHR indirectly by causing maternal stress, anxiety, or hyperventilation, which can alter the blood flow and oxygen delivery to the fetus. Therefore, adequate pain management is important for both maternal and fetal health.
Choice C reason: The response of the FHR to UCs is the most reliable and accurate way of assessing fetal well-being during labor. UCs can cause temporary reductions in the blood flow and oxygen supply to the fetus, which can affect the FHR. A normal response of the FHR to UCs is either no change or a slight increase (acceleration), which indicates a well-oxygenated and resilient fetus. An abnormal response of the FHR to UCs is a decrease (deceleration), which indicates a compromised or hypoxic fetus.
Choice D reason: Accelerations in the FHR are not a definitive measure of fetal well-being during labor. Accelerations are transient increases in the FHR above the baseline, usually caused by fetal movement, stimulation, or UCs. Accelerations are generally reassuring and indicate a responsive and well-oxygenated fetus, but they are not always present or consistent. The absence of accelerations does not necessarily mean fetal distress, as some fetuses may have periods of sleep or reduced activity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Intense abdominal pain is the most prevalent clinical manifestation of abruptio placentae, as it indicates the detachment of the placenta from the uterine wall and the bleeding into the uterine muscle. The pain can be localized or diffuse, and it can be constant or intermittent. The pain can also radiate to the back or the shoulder.
Choice B reason: Cramping is not the most prevalent clinical manifestation of abruptio placentae, as it is not specific to the condition. Cramping can occur in normal pregnancy or in other complications such as preterm labor, infection, or cervical insufficiency.
Choice C reason: Uterine activity is not the most prevalent clinical manifestation of abruptio placentae, as it is not specific to the condition. Uterine activity can occur in normal pregnancy or in other complications such as preterm labor, infection, or placenta previa.
Choice D reason: Bleeding is not the most prevalent clinical manifestation of abruptio placentae, as it may or may not be present. Bleeding can be concealed or revealed, depending on the location and extent of the placental separation. Concealed bleeding occurs when the blood is trapped behind the placenta and does not exit the vagina. Revealed bleeding occurs when the blood passes through the cervix and exits the vagina.
Correct Answer is D
Explanation
Choice A reason: Magnesium sulfate does not improve patellar reflexes and increase respiratory efficiency. In fact, it may cause hyporeflexia and respiratory depression as adverse effects. These are signs of magnesium toxicity and require immediate intervention.
Choice B reason: Magnesium sulfate does not prevent a boggy uterus and lessen lochial flow. A boggy uterus is a sign of uterine atony, which can lead to postpartum hemorrhage. Lochia is the normal vaginal discharge after childbirth. Magnesium sulfate has no effect on these conditions.
Choice C reason: Magnesium sulfate does not shorten the duration of labor. It may actually prolong labor by relaxing the uterine muscles and inhibiting contractions. Magnesium sulfate is not used to induce or augment labor.
Choice D reason: Magnesium sulfate is used to prevent and treat convulsions in women with preeclampsia and eclampsia. Convulsions are a life-threatening complication of severe hypertension during pregnancy. Magnesium sulfate acts as a central nervous system depressant and anticonvulsant. It reduces the risk of seizures and lowers blood pressure.
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