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.
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Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is D
Explanation
Choice A reason:
The woman in early labor with contractions every 5 minutes lasting 40 seconds each does not require the immediate discontinuation of the oxytocin (Pitocin) infusion. Early labor is characterized by mild and infrequent contractions as the cervix begins to dilate and efface. Choice B reason:
The woman in active labor with contractions every 30 minutes lasting 60 seconds each also does not warrant immediate discontinuation of the oxytocin (Pitocin) infusion. Active labor typically involves regular and stronger contractions as the cervix continues to dilate and the baby progresses downward.
Choice C reason:
The woman in active labor with contractions every 2 to 3 minutes lasting 70 to 80 seconds each does not require immediate cessation of the oxytocin (Pitocin) infusion. These contractions are within the expected range for active labor and may be considered normal.
Choice D reason:
The woman in transition with contractions every 1.5 minutes lasting 95 seconds each should have the oxytocin (Pitocin) infusion discontinued immediately. Transition is the most intense phase of labor, characterized by rapid and strong contractions as the cervix completes dilation. Prolonged and frequent contractions during this phase can lead to uterine hyperstimulation, which can compromise fetal oxygenation and result in fetal distress. Discontinuing the oxytocin infusion is necessary to reduce the intensity and frequency of contractions, ensuring better fetal well-being during this critical phase of labor.
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