The most common cause of decreased variability in the fetal heart rate (FHR) that lasts 30 minutes or less is:

fetal sleep cycles.

umbilical cord compression.

altered cerebral blood flow.

fetal hypoxemia.

Answer and Explanation

The Correct Answer is A

Choice A reason: Fetal sleep cycles are a normal physiological cause of decreased variability in the FHR, which is the fluctuation of the baseline FHR above and below 2 cycles per minute. Fetal sleep cycles usually last 20 to 40 minutes and do not affect the fetal well-being.

Choice B reason: Umbilical cord compression is an abnormal cause of decreased variability in the FHR, as it reduces the blood flow and oxygen delivery to the fetus. It can also cause variable decelerations, which are abrupt decreases in the FHR below the baseline.

Choice C reason: Altered cerebral blood flow is an abnormal cause of decreased variability in the FHR, as it indicates a compromise in the fetal central nervous system. It can also cause late decelerations, which are gradual decreases in the FHR after the peak of a contraction.

Choice D reason: Fetal hypoxemia is an abnormal cause of decreased variability in the FHR, as it reflects a severe lack of oxygen in the fetal blood. It can also cause sinusoidal pattern, which is a smooth, undulating waveform in the FHR.

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Correct Answer is C

Explanation

Choice A reason: Woman shorter than 62 inches or 157 cm should not restrict her weight gain during pregnancy, as she may have a higher risk of delivering a low birth weight infant. She should follow the recommended weight gain guidelines based on her pre-pregnancy body mass index (BMI).

Choice B reason: Woman in early adolescence should not restrict her weight gain during pregnancy, as she is still growing and developing herself. She may need more calories and nutrients than an adult woman to support her own health and the fetal growth.

Choice C reason: Woman who was 30 lbs overweight before pregnancy should restrict her weight gain during pregnancy, as she may have a higher risk of developing gestational diabetes, hypertension, or preeclampsia. She should aim for a lower weight gain range than a woman with a normal BMI.

Choice D reason: Woman pregnant with twins should not restrict her weight gain during pregnancy, as she needs more energy and nutrients to support the growth of two fetuses. She should aim for a higher weight gain range than a woman with a singleton pregnancy.

A. she will be unable to conceive in the future. B. a D&C will be performed to remove the products of conception. C. bed rest and analgesics are the recommended treatment. D. hemorrhage is the major concern.

Correct Answer is D

Explanation

Choice A reason: She will not be unable to conceive in the future, as ectopic pregnancy does not necessarily affect her fertility. However, she may have a higher risk of having another ectopic pregnancy or infertility if the fallopian tube is damaged or removed.

Choice B reason: A D&C (dilation and curettage) will not be performed to remove the products of conception, as this procedure is used to empty the uterus, not the fallopian tube. The treatment for ectopic pregnancy may include medication, surgery, or expectant management, depending on the location, size, and viability of the pregnancy.

Choice C reason: Bed rest and analgesics are not the recommended treatment for ectopic pregnancy, as they do not address the underlying cause or prevent complications. Ectopic pregnancy is a medical emergency that requires prompt intervention to prevent rupture, bleeding, and shock.

Choice D reason: Hemorrhage is the major concern for ectopic pregnancy, as the pregnancy can rupture the fallopian tube and cause severe bleeding into the abdominal cavity. This can lead to hypovolemic shock, which is a life-threatening condition.

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The most common cause of decreased variability in the fetal heart rate (FHR) that lasts 30 minutes or less is:

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Naxlex Comprehensive Predictor Exams

Which pregnant woman should restrict her weight gain during pregnancy?

Correct Answer is C

Explanation

A 32-year-old primigravida is admitted with a diagnosis of ectopic pregnancy. Nursing care is based on the knowledge that:

Correct Answer is D

Explanation

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