One side effect of oxytocin stimulation is hypertonic contractions. This can be detrimental to the fetus because
It produces a prolapsed cord.
It increases maternal renal blood flow.
It decreases maternal blood pressure.
There is a reduction of placental blood flow.
The Correct Answer is D
Choice A reason:
A prolapsed umbilical cord occurs when the cord slips ahead of the presenting fetal part, potentially leading to cord compression and compromised fetal oxygenation. However, hypertonic contractions do not directly cause a prolapsed cord. Instead, factors such as premature rupture of membranes, abnormal fetal positioning, or excessive amniotic fluid (polyhydramnios) are more likely contributors to cord prolapse. Hypertonic contractions primarily affect uteroplacental circulation rather than fetal positioning.
Choice B reason:
One side effect of oxytocin stimulation is hypertonic contractions. This can be detrimental to the fetus because it produces a prolapsed cord. This is incorrect because a prolapsed cord is not caused by hypertonic contractions, but by other factors such as a low-lying placenta, a premature rupture of membranes, a small or preterm fetus, or an abnormal presentation. A prolapsed cord occurs when the umbilical cord slips through the cervix and into the vagina before or during delivery. This can compress the cord and cut off the blood supply to the fetus, resulting in fetal bradycardia and possible death.
Choice C reason:
One side effect of oxytocin stimulation is hypertonic contractions. This can be detrimental to the fetus because it increases maternal renal blood flow. This is incorrect because hypertonic contractions do not affect maternal renal blood flow directly. Maternal renal blood flow is influenced by factors such as maternal blood pressure, hydration, cardiac output, and renal function. Hypertonic contractions may cause maternal dehydration, which can reduce renal blood flow, but this is not a direct effect of oxytocin stimulation.
Choice D reason:
Hypertonic contractions reduce placental blood flow by limiting the relaxation phase between contractions. Normally, uterine contractions intermittently compress the spiral arteries supplying the placenta, but prolonged or excessively frequent contractions prevent adequate placental perfusion. This can lead to fetal hypoxia, acidosis, and distress, making it the most detrimental effect of oxytocin-induced hypertonic contractions.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. The woman had a vacuum-assisted birth. While vacuum-assisted births can cause perineal trauma, the specific orders for ice packs, sitz baths, and stool softeners are more directly related to an episiotomy, which involves a surgical incision that requires careful postpartum care.
B. The woman is a gravida 2, para 2. This information indicates the woman's obstetric history but does not directly correlate with the need for perineal ice packs, sitz baths, and stool softeners. These orders are more specific to perineal trauma or surgical intervention.
C. The woman has an episiotomy. An episiotomy involves a surgical cut made at the opening of the vagina during childbirth, which can cause significant perineal pain and swelling. The orders for perineal ice packs, sitz baths, and stool softeners are intended to manage pain, reduce swelling, and prevent constipation, which can be particularly uncomfortable with perineal stitches.
D. The woman received epidural anesthesia. While epidural anesthesia is a common pain management technique during labor, it does not necessitate the use of perineal ice packs, sitz baths, or stool softeners postpartum. These orders are more indicative of perineal trauma or surgical intervention such as an episiotomy.
Correct Answer is C
Explanation
Choice A reason:
Acrocyanosis (choice A) is a common and relatively normal finding in newborns, especially in the first few days of life. It refers to the bluish discoloration of the hands and feet due to peripheral vasoconstriction. Acrocyanosis alone does not necessarily indicate significant difficulty with oxygenation and is usually a transient and benign condition.
Choice B reason:
A respiratory rate of 54 breaths/minute (choice B) is within the normal range for a newborn. The normal respiratory rate for a newborn can range from 30 to 60 breaths per minute. While an abnormal respiratory rate outside this range may be a concern, a rate of 54 breaths/minute is not indicative of significant oxygenation difficulty by itself.
Choice C reason:
Nasal flaring in a newborn is a concerning sign that suggests the baby is experiencing difficulty with oxygenation. When a newborn is having trouble getting enough oxygen, they may instinctively open their nostrils wider (nasal flaring) to increase the airflow into the nose and improve oxygen intake. This is a compensatory mechanism to overcome respiratory distress and is often seen in newborns with respiratory problems. Nasal flaring is an important clinical sign that indicates the baby may be struggling to breathe adequately and requires further evaluation and intervention by the healthcare team.
Choice D reason:
Abdominal breathing (choice D) is a normal breathing pattern in newborns. Newborns predominantly use their diaphragm to breathe, which results in abdominal movements during respiration. This is a normal and expected finding in healthy newborns and does not necessarily suggest oxygenation problems.
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