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 A
Explanation
Choice A reason:
All milk- and lactose-containing formulas, including breast milk, must be stopped during infancy. Soy protein is the formula of choice for newborns and infants with galactosemia. Breast milk should not be used in newborns and infants with galactosemia because it contains galactose, which they cannot metabolize properly.
Choice B reason:
Adding amino acids to the breast milk will not help the newborn with galactosemia, because the problem is not a lack of amino acids, but a deficiency of the enzyme that breaks down galactose. Amino acids are the building blocks of proteins, not sugars.
Choice C reason:
Substituting a lactose-containing formula for breast milk will worsen the condition of the newborn with galactosemia because lactose is composed of glucose and galactose. The newborns will still be exposed to galactose, which will accumulate in the blood and tissues and cause damage.
Choice D reason:
Giving the appropriate enzyme along with breast milk is not a feasible option for the newborn with galactosemia, because there is no oral enzyme replacement therapy available for this condition. The only treatment is dietary restriction of galactose.
Correct Answer is C
Explanation
Choice A reason:
Intermittent abdominal pain following passage of bloody mucus is not a sign of placenta previa, but rather of bloody show, which is a normal occurrence in late pregnancy as the cervix begins to dilate and efface.
Choice B reason:
Abdominal pain with minimal red vaginal bleeding is not a sign of placenta previa, but rather of abruptio placentae, which is a serious complication where the placenta detaches from the uterine wall before delivery.
Choice C reason:
A large amount of bright red vaginal bleeding without pain is a sign of placenta previa, which is a condition where the placenta covers part or all of the cervical opening. This can cause bleeding when the cervix dilates or contracts, especially in the third trimester. This is a medical emergency that requires immediate attention.
Choice D reason:
Severe abdominal pain with increasing fundal height is not a sign of placenta previa, but rather of uterine rupture, which is a rare but life-threatening complication where the uterus tears open along the scar line from a previous cesarean delivery or other uterine surgery. This can cause severe bleeding, fetal distress, and shock.
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