Which assessment findings may cause the nurse to suspect a brachial plexus injury?
The newborn has hypotonia
The newborn does not demonstrate the Moro reflex
The newborn cries continually
The newborn has tremors
The Correct Answer is B
Choice A reason:
The newborn has hypotonia. This is not a specific sign of brachial plexus injury, as hypotonia can have many other causes, such as genetic disorders, infections, or brain damage.
Hypotonia is a general term for low muscle tone or weakness, which can affect the whole body or specific parts.
Choice B reason:
The newborn does not demonstrate the Moro reflex. This is a sign of brachial plexus injury, especially if it affects only one arm. The Moro reflex is a startle response that causes the baby to throw out the arms and legs, then curl them in when startled. A brachial plexus injury can impair the nerve function in the shoulder, arm, or hand, leading to decreased movement or sensation in the upper extremity. If the baby does not show the Moro reflex on one side, it may indicate damage to the upper brachial plexus nerves (C5-C7), also known as Erb's palsy.
Choice C reason:
The newborn cries continually. This is not a specific sign of brachial plexus injury, as crying can have many other causes, such as hunger, discomfort, or colic. Crying is a normal way for babies to communicate their needs and feelings. Crying does not necessarily indicate pain from a brachial plexus injury, as infants' nerves behave differently from adults' and they may not experience much pain from this condition.
Choice D reason:
The newborn has tremors. This is not a specific sign of brachial plexus injury, as tremors can have many other causes, such as cold temperature, low blood sugar, or withdrawal from maternal medications. Tremors are involuntary movements of the muscles that can affect the whole body or specific parts. Tremors do not necessarily indicate nerve damage from a brachial plexus injury, as this condition usually causes weakness or paralysis of the affected muscles.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A:
Two arteries and two veins. This is incorrect because the umbilical cord normally has only three blood vessels: one vein and two arteries. Having four blood vessels is a rare anomaly that can be associated with congenital defects. •
Choice B:
Two veins and one artery. This is incorrect because the umbilical cord normally has only one vein and two arteries. Having two veins and one artery is another rare anomaly that can also be associated with congenital defects. •
Choice C:
One artery and one vein. This is incorrect because the umbilical cord normally has two arteries and one vein. Having only one artery and one vein is a common anomaly that occurs in about 1% of singleton pregnancies and 5% of twin pregnancies. It can be associated with intrauterine growth restriction, congenital anomalies, and perinatal mortality. •
Choice D:
Two arteries and one vein. This is correct because the umbilical cord normally has two arteries and one vein. The vein carries oxygenated blood from the placenta to the fetus, while the arteries carry deoxygenated blood from the fetus to the placenta. The umbilical cord also contains Wharton's jelly, which is a gelatinous substance that protects the blood vessels from compression.
Correct Answer is ["B","D","F","H"]
Explanation
Choice A reason
Blood pressure is not a priority finding for a newborn with neonatal abstinence syndrome (NAS). Blood pressure is usually normal or slightly elevated in NAS, and it is not a reliable indicator of the severity of withdrawal symptoms.
Choice B reason
Gastrointestinal disturbances are a common and serious finding for a newborn with NAS. Vomiting and diarrhea can lead to dehydration, electrolyte imbalance, and poor weight gain. Projectile vomiting can also increase the risk of aspiration. This finding requires immediate follow-up and intervention.
Choice C reason
Skin color is not a priority finding for a newborn with NAS. Acrocyanosis (bluish color of the hands and feet) is a normal finding in newborns and does not indicate hypoxia or poor circulation. It usually resolves within the first few days of life.
Choice D reason
NAS score is not a priority finding for a newborn with NAS. NAS score is a tool used to assess the severity of withdrawal symptoms and the need for pharmacological treatment. It is based on a set of clinical signs and symptoms that are scored at regular intervals. However, it is not a substitute for clinical judgment and individualized care. The NAS score alone does not determine the urgency of follow-up.
Choice E reason
Temperature is not a priority finding for a newborn with NAS. Temperature may be slightly elevated or normal in NAS, and it is not a specific sign of infection or withdrawal. Temperature regulation is important for newborns, but it is not an immediate concern in this case.
Choice F reason
Oxygen saturation is a priority finding for a newborn with NAS. Tachypnea (rapid breathing) and retractions (inward movement of the chest wall) are signs of respiratory distress, which can compromise oxygen delivery to the tissues and organs. Hypoxia (low oxygen level) can cause brain damage, organ failure, and death if not corrected promptly. This finding requires immediate follow-up and intervention.
Choice G reason
Central nervous system disturbances are a priority finding for a newborn with NAS. Increased muscle tone, tremors, high-pitched cry, and seizures are signs of neurological dysfunction,which can indicate brain injury, bleeding, or infection. Seizures can also worsen hypoxia and metabolic acidosis. This finding requires immediate follow-up and intervention.
Choice H reason
Respiratory rate is not a priority finding for a newborn with NAS. Respiratory rate may be increased or normal in NAS, and it is not a specific sign of respiratory distress or infection. Respiratory rate should be monitored along with other vital signs.
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