A nurse is reviewing the results of a nonstress test for a client who is at 37 weeks of gestation.
Which of the following findings indicates a reactive nonstress test?
Fetal heart rate (FHR) accelerations occur with fetal movement.
Late decelerations of the FHR occur with contractions.
Variable decelerations of the FHR.
FHR pattern with minimal variability.
The Correct Answer is A
Choice A rationale
Fetal heart rate (FHR) accelerations with fetal movement are a sign of a healthy and reactive nonstress test. This indicates that the fetus is well-oxygenated and there is no immediate distress.
Choice B rationale
Late decelerations of the FHR occur with contractions and are a concern for fetal hypoxia. This does not indicate a reactive nonstress test and instead suggests the need for further evaluation.
Choice C rationale
Variable decelerations are abrupt decreases in FHR and could indicate umbilical cord compression. This does not correlate with a reactive nonstress test.
Choice D rationale
FHR pattern with minimal variability can be a sign of fetal distress or compromised oxygenation. It is not indicative of a reactive nonstress test.
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View Related questions
Correct Answer is A
Explanation
Choice A rationale
Terbutaline can cause tachycardia. A heart rate of 132/min is significantly higher than normal and could indicate severe cardiovascular effects.
Choice B rationale
While headaches can occur with terbutaline, they are generally not life-threatening and don't require immediate intervention compared to tachycardia.
Choice C rationale
Nasal congestion is a minor side effect and not a priority compared to a significantly elevated heart rate.
Choice D rationale
Tremors are common with terbutaline use, but they are usually not as concerning as a significantly elevated heart rate
Correct Answer is B
Explanation
Choice A rationale
Variable decelerations are associated with umbilical cord compression, not placenta previa. In placenta previa, the placenta covers the cervical os, but it does not typically cause
variable decelerations on fetal monitoring.
Choice B rationale
Painless vaginal bleeding is a hallmark sign of placenta previa. This occurs because the placenta is located near or over the cervical os, leading to bleeding when the cervix dilates
or effaces.
Choice C rationale
A rigid abdomen is more indicative of placental abruption, where the placenta detaches prematurely from the uterine wall, causing pain and a tense abdomen, not typically seen in
placenta previa.
Choice D rationale
Uterine tachysystole is characterized by excessive uterine contractions and is not a clinical finding related to placenta previa. Tachysystole often results from excessive oxytocin use
or other uterine stimulants.