A breastfed newborn has just been diagnosed with galactosemia. The therapeutic management for this newborn is to:
Stop breastfeeding
Add amino acids to the breast milk
Substitute a lactose-containing formula for breast milk
Give the appropriate enzyme along with breast milk.
The Correct Answer is A
Choice A reason:
Stop breastfeeding. This is the correct answer because newborns and infants with galactosemia cannot metabolize galactose, a sugar found in milk and lactose-containing formulas, including breast milk. Galactose can build up in their blood and cause serious complications such as liver damage, cataracts, brain damage, and even death. Therefore, the therapeutic management for this newborn is to stop breastfeeding and switch to a soy or elemental formula that contains no galactose.
Choice B reason:
Add amino acids to the breast milk. This is incorrect because adding amino acids to breast milk will not prevent the accumulation of galactose in the newborn's blood. Amino acids are the building blocks of proteins, not sugars. Adding amino acids to breast milk will not change its galactose content or help the newborn metabolize it.
Choice C reason:
Substitute a lactose-containing formula for breast milk. This is incorrect because lactose is a disaccharide composed of glucose and galactose. Lactose-containing formulas will also expose the newborn to galactose, which they cannot break down. Lactose-containing formulas should be avoided in newborns and infants with galactosemia.
Choice D reason:
Give the appropriate enzyme along with breast milk. This is incorrect because there is no enzyme therapy available for galactosemia. Galactosemia is caused by a genetic defect in one of the enzymes involved in the breakdown of galactose, such as galactose-1-phosphate uridyltransferase (GALT), galactokinase (GALK), or uridine diphosphate galactose-4-epimerase (GALE). Giving an enzyme along with breast milk will not correct this defect or prevent the harmful effects of galactose accumulation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason:
This is a normal WBC for a newborn. According to MedlinePlus, the normal amount of white blood cells (WBCs) found in the bloodstream of a newborn infant is between 4,500 and 10,000 per microliter of blood. The reference ranges for WBC count established by Mayo Medical Laboratories for infants from birth to 2 years are as follows:.
• Birth: 9.0 to 30.0 x 10 9 /L.
• 1 to 7 days: 9.4 to 34.0 x 10 9 /L.
• 8 to 14 days: 5.0 to 21.0 x 10 9 /L.
• 15 days to 1 month: 5.0 to 20.0 x 10 9 /L.
• 2 to 5 months: 5.0 to 15.0 x 10 9 /L. Therefore, a newborn's WBC of 15,000 is within the normal range and does not indicate any problem.
Choice B reason:
You must call the doctor. This is not a correct answer because there is no need to call the doctor for a normal WBC in a newborn. Calling the doctor unnecessarily may cause anxiety and a waste of time and resources.
Choice C reason:
This indicates a severe infection. This is not a correct answer because a WBC of 15,000 does not necessarily indicate a severe infection in a newborn. A high WBC, also called leukocytosis, may be related to infection, but it can also be caused by other factors such as stress, inflammation, trauma, medication, or blood disorders. Moreover, the type and severity of infection can be better assessed by looking at the differential count of the different types of white blood cells (neutrophils, eosinophils, basophils, monocytes, and lymphocytes) and other signs and symptoms.
Choice D reason:
This is a lab error. This is not a correct answer because a WBC of 15,000 is not likely to be a lab error in a newborn. Lab errors can occur due to improper collection, handling, or analysis of blood samples, but they are rare and usually detected by quality control measures. A WBC of 15,000 is within the normal range for a newborn and does not require repeating the test unless there is a strong suspicion of an error or an inconsistency with other results or clinical findings.
Correct Answer is ["A","B","D","E"]
Explanation
Choice A reason:
Heel to ear is a test that measures the flexibility of the newborn's hip and knee joints. The nurse should gently flex the newborn's hip and knee and bring the foot toward the ear on the same side. The closer the foot is to the ear, the higher the score. This test is part of the neuromuscular assessment for gestational age.
Choice B reason:
Popliteal angle is a test that measures the angle of flexion at the knee joint. The nurse should flex the newborn's hip and knee at 90 degrees and then extend the lower leg until resistance is felt. The smaller the angle, the higher the score. This test is also part of the neuromuscular assessment for gestational age.
Choice C reason:
Moro reflex is a test that evaluates the newborn's startle response. The nurse should hold the newborn in a semi-sitting position and then allow the head to fall back slightly. The newborn should extend and abduct the arms and legs, then flex and adduct them. This test is not part of the neuromuscular assessment for gestational age, but rather a reflex assessment for neurological function. •
Choice D reason:
Scarf sign is a test that measures the flexibility of the newborn's shoulder and elbow joints. The nurse should draw one of the newborn's arms across the chest toward the opposite shoulder. The farther the elbow can be moved across the body, the lower the score. This test is part of the neuromuscular assessment for gestational age.
Choice E reason:
Arm recoil is a test that measures the degree of flexion at the elbow joint. The nurse should extend both of the newborn's arms for 5 seconds and then release them. The arms should return to a flexed position quickly and fully. The faster and more complete the recoil, the higher the score. This test is part of the neuromuscular assessment for gestational age.
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