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 D
Explanation
Choice A reason: Amniotic fluid in the vaginal vault indicates that the membranes have ruptured, but this does not necessarily mean that the client is in labor. Some women may have a slow leak of amniotic fluid for hours or days before labor begins. Rupture of membranes also increases the risk of infection, so the nurse should monitor the client's temperature and fetal heart rate.
Choice B reason: Contractions every 3 to 4 minutes are a sign of labor, but they are not enough to confirm it. The nurse should also assess the duration and intensity of the contractions, as well as the client's response to them. Some women may have false labor contractions, also known as Braxton Hicks contractions, which are irregular, mild, and do not cause cervical changes.
Choice C reason: Pain just above the navel is not a typical sign of labor. It may indicate other problems, such as placental abruption, uterine rupture, or fetal distress. The nurse should report this finding to the nurse midwife and check for other signs of bleeding, shock, or fetal compromise.
Choice D reason: Cervical dilation is the most reliable indicator of labor. It means that the cervix is opening and thinning out to allow the passage of the fetus. The nurse should measure the cervical dilation in centimeters and document it along with the station and effacement of the cervix.
Correct Answer is B
Explanation
Choice A reason: The cervix is effaced 3 cm, it is dilated 30%, and the presenting part is 1 cm above the ischial spines is incorrect, as this does not follow the correct order and measurement of cervical assessment. Cervical effacement is measured in percentage, not in centimeters, and it indicates the thinning or shortening of the cervix. Cervical dilation is measured in centimeters, not in percentage, and it indicates the opening or widening of the cervix.
Choice B reason: The cervix is dilated 3 cm, it is effaced 30%, and the presenting part is 1 cm above the ischial spines is correct, as this follows the correct order and measurement of cervical assessment. Cervical dilation, effacement, and station are recorded in that order to describe the progress of labor. Station refers to the relationship between the presenting part of the fetus and the maternal pelvis, measured by the level of the ischial spines. A negative station means that the presenting part is above the spines, while a positive station means that it is below.
Choice C reason: The cervix is effaced 3 cm, it is dilated 30%, and the presenting part is 1 cm below the ischial spines is incorrect, as this does not follow the correct order and measurement of cervical assessment. Cervical effacement is measured in percentage, not in centimeters, and it indicates the thinning or shortening of the cervix. Cervical dilation is measured in centimeters, not in percentage, and it indicates the opening or widening of the cervix.
Choice D reason: The cervix is dilated 3 cm, it is effaced 30%, and the presenting part is 1 cm below the ischial spines is incorrect, as this does not match the documentation of station. A negative station means that the presenting part is above the spines, while a positive station means that it is below.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today