Before applying a cord clamp, the nurse assesses the umbilical cord for vessels. The nurse expects to find: Select one:
Two arteries, one vein.
Two veins, one artery.
Two veins, two arteries.
One artery, one vein.
The Correct Answer is A
Choice A Reason: Two arteries, one vein. This is because two arteries and one vein are the normal components of the umbilical cord, which is a structure that connects the fetus to the placenta and provides blood circulation between them. The umbilical cord carries oxygenated blood from the placenta to the fetus through the umbilical vein, and deoxygenated blood from the fetus to the placenta through the umbilical arteries.
Choice B Reason: Two veins, one artery. This is an incorrect answer that indicates an abnormal anatomy of the umbilical cord, which is known as single umbilical artery (SUA). SUA is a condition where there is only one umbilical artery instead of two, which can reduce blood flow and oxygen delivery to the fetus. SUA can be associated with congenital anomalies or growth restriction in some cases.
Choice C Reason: Two veins, two arteries. This is an incorrect answer that indicates an abnormal anatomy of the umbilical cord, which is known as double umbilical vein (DUV). DUV is a condition where there are two umbilical veins instead of one, which can increase blood flow and oxygen delivery to the fetus. DUV can be associated with fetal overgrowth or polycythemia in some cases.
Choice D Reason: One artery, one vein. This is an incorrect answer that indicates an abnormal anatomy of the umbilical cord, which is also known as single umbilical artery (SUA). SUA is a condition where there is only one umbilical artery instead of two, which can reduce blood flow and oxygen delivery to the fetus. SUA can be associated with congenital anomalies or growth restriction in some cases.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason: Late decelerations. This is an incorrect answer that refers to a different type of fetal heart rate patern that indicates uteroplacental insufficiency, which can reduce blood flow and oxygen delivery to the fetus. Late decelerations are characterized by gradual decreases in fetal heart rate that begin after the peak of uterine contractions and return to baseline after the end of contractions. Amnioinfusion is not effective for late decelerations, as it does not address the underlying cause of uteroplacental insufficiency, which may be due to maternal hypertension, diabetes, preeclampsia, or placental abruption.
Choice B Reason: Moderate decelerations. This is an incorrect answer that refers to a non-existent type of fetal heart rate patern, as there is no such term as moderate decelerations. The term moderate refers to the category of fetal heart rate variability, which is a measure of the fluctuations in fetal heart rate around the baseline. Moderate variability indicates normal fetal oxygenation and well-being, while absent or minimal variability indicates fetal hypoxia or distress.
Choice C Reason: Variable decelerations. This is because variable decelerations are a type of fetal heart rate patern that indicates cord compression, which can reduce blood flow and oxygen delivery to the fetus. Variable decelerations are characterized by abrupt decreases in fetal heart rate that vary in onset, depth, and duration, and do not have a consistent relationship with uterine contractions. Amnioinfusion is a procedure that involves infusing saline or lactated Ringer's solution into the amniotic cavity through a transcervical catheter, which can relieve cord compression by increasing the volume of amniotic fluid and cushioning the cord. Amnioinfusion can improve fetal oxygenation and reduce variable decelerations.
Choice D Reason: Early decelerations. This is an incorrect answer that refers to a different type of fetal heart rate patern that indicates head compression, which can stimulate the vagus nerve and slow down the fetal heart rate. Early decelerations are characterized by gradual decreases in fetal heart rate that begin with the onset of uterine contractions and return to baseline with the end of contractions. Early decelerations are benign and do not require intervention, as they reflect normal fetal head descent and progress of labor. Amnioinfusion is not indicated for early decelerations, as it does not affect head compression or vagal stimulation.
Correct Answer is A
Explanation
Choice A Reason: Place the infant skin to skin with the mother and re-check temperature in 30 minutes. This is because skin-to-skin contact is an effective and safe method of increasing the infant's temperature and promoting thermoregulation. Skin-to-skin contact also has other benefits such as enhancing bonding, breastfeeding, and maternal-infant attachment.
Choice B Reason: Check the infant's CBC and blood cultures, as this is a sign of probable sepsis. This is an unnecessary action that may cause undue stress and discomfort to the infant and the mother. A slightly decreased temperature in a full-term infant is not a sign of probable sepsis, but rather a common finding that may be due to environmental factors, such as exposure to cold air or wet linens.
Choice C Reason: Return the infant to the nursery for close observation under warming lights. This is an undesirable action that may interfere with the early initiation of breastfeeding and bonding between the mother and the infant. Warming lights are not recommended for routine use in healthy newborns, as they may cause dehydration, hyperthermia, or eye damage.
Choice D Reason: Notify the physician immediately and suggest orders for placement in an incubator. This is an excessive action that may indicate a lack of knowledge or confidence on the part of the nurse. An incubator is not indicated for a stable, full term infant with a slightly decreased temperature, as it may expose the infant to unnecessary interventions, infections, or separation from the mother.
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