The fetal heart rate is heard above the umbilicus and on the mother's left.
The nurse concludes that the fetus is in which position?
LSA.
LOA.
ROA.
ROP.
The Correct Answer is A
Choice A rationale
A fetus in the left sacroanterior (LSA) position has its sacrum, or buttocks, pointing toward the mother's left side and toward the front of her pelvis. The fetal heart is typically located in the fetal chest, and with a breech presentation (sacrum first), the fetal heart is located higher in the uterus, often above the umbilicus, which explains why the nurse hears the fetal heart rate in that location.
Choice B rationale
A fetus in the left occipitoanterior (LOA) position has its occiput, or back of the head, pointing toward the mother's left side and toward the front of her pelvis. In this vertex presentation, the fetal head is typically in the lower uterine segment, and the fetal heart would be heard below the mother's umbilicus, not above it.
Choice C rationale
A fetus in the right occipitoanterior (ROA) position has its occiput, or back of the head, pointing toward the mother's right side and toward the front of her pelvis. Similar to LOA, this is a vertex presentation. The fetal heart is typically heard below the mother's umbilicus and on her right side, not above it and on her left side.
Choice D rationale
A fetus in the right occipitoposterior (ROP) position has its occiput, or back of the head, pointing toward the mother's right side and toward the back of her pelvis. This is also a vertex presentation. The fetal heart would be heard below the mother's umbilicus and on her right side, not above it and on her left side.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D","E"]
Explanation
Choice A rationale
Checking urinary output is an important part of overall patient care to assess hydration status and kidney function. However, it is not a direct or immediate intrauterine resuscitation measure for addressing late decelerations, which are a sign of uteroplacental insufficiency and require interventions to improve oxygenation and blood flow to the fetus.
Choice B rationale
Cardiopulmonary resuscitation (CPR) is a life-saving procedure performed when a person's heart stops beating or they stop breathing. It is not an appropriate intervention for a laboring mother with late decelerations unless she experiences a cardiopulmonary arrest herself, which is not indicated by this fetal heart rate pattern.
Choice C rationale
Repositioning the mother onto her side, especially the left side, shifts the weight of the gravid uterus off the inferior vena cava and aorta. This action scientifically improves venous return to the heart and increases cardiac output, thereby enhancing blood flow and oxygen delivery to the placenta and fetus, which can resolve late decelerations.
Choice D rationale
Increasing IV fluids expands the maternal circulating blood volume, which can improve placental perfusion. This increase in intravascular fluid volume leads to a rise in maternal cardiac output and blood pressure, thereby increasing the flow of oxygenated blood to the intervillous spaces of the placenta, addressing the root cause of late decelerations.
Choice E rationale
Applying a non-rebreather oxygen mask to the mother at a flow rate of 8 to 10 liters per minute increases the oxygen saturation of the maternal blood. This higher concentration of oxygen is then delivered to the placenta, increasing the oxygen available for transfer to the fetus and thereby addressing the fetal hypoxemia that is causing the late decelerations. .
Correct Answer is B
Explanation
Choice A rationale
While oxygen administration may be indicated for signs of fetal distress, it is not the top priority. The most critical risk immediately following membrane rupture is the possibility of a prolapsed umbilical cord. Administering oxygen doesn’t address this immediate mechanical risk. The primary intervention must be to assess for cord prolapse by checking the fetal heart rate for signs of compression.
Choice B rationale
The top priority intervention immediately following a rupture of membranes is to assess the fetal heart rate. The most significant risk is a prolapsed umbilical cord, which can be compressed between the fetal presenting part and the maternal pelvis. This compression compromises fetal oxygenation, leading to a sudden and severe drop in fetal heart rate, which is a life-threatening emergency.
Choice C rationale
Preparing for a cesarean birth is a potential intervention if there is evidence of a prolapsed cord or severe fetal distress. However, it is not the initial priority. The first step is to assess the situation by checking the fetal heart rate to determine if an emergency exists. A cesarean is a consequence of a serious finding, not the first-line intervention.
Choice D rationale
Placing the woman in a knee-chest or Trendelenburg position is an intervention used to relieve pressure on a prolapsed umbilical cord once it has been identified. This is a crucial intervention, but it is not the very first step. The first priority is to identify if cord prolapse has occurred by checking the fetal heart rate, which dictates whether this position change is necessary.
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
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.