Which finding meets the criteria of a reassuring fetal heart rate (FHR) pattern?
Variability averages between 6 and 10 beats/min.
Mild late deceleration patterns occur with some contractions.
FHR does not change as a result of fetal activity.
Average baseline rate ranges between 100 and 140 beats/min.
The Correct Answer is A
Choice A reason: Variability refers to the fluctuations in the FHR that are irregular in amplitude and frequency. It reflects the balance between the sympathetic and parasympathetic nervous systems of the fetus. A normal variability is between 6 and 10 beats/min, which indicates a healthy and well-oxygenated fetus.
Choice B reason: Late decelerations are decreases in the FHR that begin after the peak of a contraction and return to the baseline after the contraction ends. They are caused by uteroplacental insufficiency, which means that the placenta is not delivering enough oxygen and nutrients to the fetus. Mild late decelerations are not reassuring and may indicate fetal hypoxia or acidosis².
Choice C reason: FHR should change as a result of fetal activity, such as movement, sleep, or stimulation. A change in the FHR indicates a responsive and well-oxygenated fetus. A lack of change in the FHR may indicate fetal distress or compromise.
Choice D reason: The average baseline rate is the mean FHR rounded to increments of 5 beats/min during a 10-minute window, excluding periods of marked variability, accelerations, or decelerations. A normal baseline rate is between 110 and 160 beats/min. A baseline rate between 100 and 140 beats/min is not necessarily abnormal, but it may indicate fetal bradycardia (slow heart rate) or tachycardia (fast heart rate), depending on the gestational age and other factors.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Infection is not the greatest risk for a woman with marginal placenta previa, as it is not directly related to the condition. Marginal placenta previa is a type of placenta previa where the edge of the placenta is near the cervical os but does not cover it. It can cause painless bleeding during pregnancy or labor, but it does not increase the risk of infection.
Choice B reason: Hemorrhage is the greatest risk for a woman with marginal placenta previa, as it can occur due to the separation of the placenta from the uterine wall during labor or delivery. The bleeding can be profuse and life-threatening, and it requires prompt intervention and monitoring.
Choice C reason: Urinary retention is not the greatest risk for a woman with marginal placenta previa, as it is not directly related to the condition. Urinary retention is the inability to empty the bladder completely, and it can occur due to various factors such as anesthesia, trauma, or medication. It can cause discomfort, infection, or bladder distension, but it is not as serious as hemorrhage.
Choice D reason: Thrombophlebitis is not the greatest risk for a woman with marginal placenta previa, as it is not directly related to the condition. Thrombophlebitis is the inflammation of a vein due to a blood clot, and it can occur due to prolonged bed rest, dehydration, or injury. It can cause pain, swelling, or redness in the affected area, and it can lead to pulmonary embolism if the clot dislodges and travels to the lungs. However, it is not as common or as severe as hemorrhage.
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.
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