The nurse notices while holding him upright that a 1-day-old newborn has a significantly indented anterior fontanelle. She immediately brings it to the attention of the physician. What does this finding most likely indicate?
Increased intracranial pressure.
Vernix caseosa.
Dehydration.
Cyanosis.
The Correct Answer is C
The correct answer is c. Dehydration. A significantly indented anterior fontanelle in a newborn is most commonly a sign of dehydration.
Choice A reason:
Increased intracranial pressure: This statement is incorrect because increased intracranial pressure typically causes a bulging, not indented, fontanelle. Symptoms include irritability, vomiting, and a high-pitched cry.
Choice B reason:
Vernix caseosa: This statement is incorrect because vernix caseosa is a white, cheesy substance covering the skin of newborns, unrelated to fontanelle indentation. It serves as a protective layer for the baby’s skin.
Choice C reason:
Dehydration: This statement is correct. Dehydration in newborns can cause a sunken fontanelle due to the loss of fluid. Other signs include dry mouth, sunken eyes, and fewer wet diapers.
Choice D reason:
Cyanosis: This statement is incorrect because cyanosis refers to a bluish discoloration of the skin due to lack of oxygen, not related to fontanelle shape. It indicates issues with oxygenation or circulation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Assist the client to turn onto her side. This is the correct answer because turning the client onto her side can improve blood flow to the placenta and increase fetal oxygenation. Hypotension is a common cause of decreased uteroplacental perfusion, which can lead to fetal distress and late decelerations on the fetal monitor. The nurse should also administer oxygen, increase IV fluids, and notify the provider. • Choice B reason:
Prepare for an immediate vaginal delivery. This is not the correct answer because there is no indication that the client is ready for delivery. The client has 6 cm of cervical dilation, which means she is still in the active phase of labor. The second stage of labor begins when the cervix is fully dilated (10 cm) and ends with delivery of the baby. Preparing for an immediate vaginal delivery would not address the cause of hypotension or improve fetal oxygenation. • Choice C reason:
Prepare for a cesarean birth. This is not the correct answer because there is no indication that the client needs a cesarean birth. A cesarean birth may be indicated if there are signs of fetal compromise, such as severe variable or late decelerations, or maternal complications, such as placenta previa or cord prolapse. However, these conditions are not present in this scenario. Preparing for a cesarean birth would not address the cause of hypotension or improve fetal oxygenation. • Choice D reason:
Assist the client to an upright position. This is not the correct answer because placing the client in an upright position can worsen hypotension and decrease uteroplacental perfusion. An upright position can increase pressure on the inferior vena cava and reduce venous return to the heart. This can lower cardiac output.
Correct Answer is B
Explanation
Choice A: Change her position to the right side
Changing the mother’s position to the right side can sometimes help improve fetal oxygenation by relieving pressure on the vena cava. However, since the mother is already lying on her left side, which is typically the preferred position to optimize blood flow, changing to the right side may not be as effective .
Choice B: Place a wedge under the left hip
Placing a wedge under the left hip is a common intervention to improve uteroplacental blood flow. This position helps to tilt the uterus off the vena cava, enhancing venous return and improving cardiac output, which can positively affect fetal oxygenation. This is why it is the correct answer.
Choice C: Lower the head of the bed
Lowering the head of the bed can help increase blood flow to the upper body and brain, but it does not specifically address the issue of improving uteroplacental blood flow. This action is less targeted for resolving nonreassuring fetal heart rate patterns.
Choice D: Place the mother in a Trendelenburg position
The Trendelenburg position, where the mother is laid flat on her back with her feet elevated higher than her head, is generally used to treat hypotension or to improve venous return in cases of shock. However, it is not typically recommended for nonreassuring fetal heart rate patterns as it can increase pressure on the diaphragm and reduce respiratory efficiency.
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