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 ["B","C","D","F","G"]
Explanation
Choice A:
Temperature is not a finding that the nurse should report to the provider. The normal range for temperature in newborns is 36.5 to 37 degrees Celsius axillary. The question does not provide the temperature of the newborn, but it does not indicate any signs of hypothermia or hyperthermia.
Choice B:
Respiratory findings are findings that the nurse should report to the provider. The newborn has mild grunting, nasal flaring, and intermittent retractions, which are signs of respiratory distress. These could indicate a problem with lung development, infection, or congenital heart disease.
Choice C:
Serum glucose is a finding that the nurse should report to the provider. The normal range for blood glucose in newborns is above 40 mg/dL. The question does not provide the serum glucose level of the newborn, but it could be low due to factors such as prematurity, maternal diabetes, or sepsis.
Choice D:
Hematocrit is a finding that the nurse should report to the provider. The normal range for hematocrit in newborns is 42% to 65%. The question does not provide the hematocrit level of the newborn, but it could be high due to polycythemia or low due to anemia or hemorrhage.
Choice E:
White blood cell count is not a finding that the nurse should report to the provider. The normal range for white blood cell count in newborns is 9,000 to 30,000/mm3. The question does not provide the white blood cell count of the newborn, but it does not indicate any signs of infection or inflammation.
Choice F:
Hemoglobin is a finding that the nurse should report to the provider. The normal range for hemoglobin in newborns is 14 to 24 g/dL. The question does not provide the hemoglobin level of the newborn, but it could be high due to polycythemia or low due to anemia or hemorrhage.
Choice G:
Heart rate is a finding that the nurse should report to the provider. The normal range for heart rate in newborns is 85 to 190 beats per minute when awake. The question does not provide the heart rate of the newborn, but it could be high due to stress, pain, fever, or hypoxia, or low due to bradycardia or cardiac arrest.
Correct Answer is B
Explanation
Choice A reason:
Diminished deep-tendon reflexes are a sign of magnesium toxicity, not safety. Magnesium sulfate is a central nervous system depressant that can cause muscle weakness, respiratory depression, and cardiac arrest if given in excess. The nurse should monitor the client's deep-tendon reflexes and stop the infusion if they are absent or reduced.
Choice B reason:
A respiratory rate of 16/min is a normal finding and indicates that the client is not experiencing respiratory depression from magnesium sulfate. The nurse should monitor the client's respiratory rate and stop the infusion if it falls below 12/min.
Choice C reason:
A heart rate of 60/min is a normal finding and indicates that the client is not experiencing bradycardia from magnesium sulfate. The nurse should monitor the client's heart rate and stop the infusion if it falls below 50/min.
Choice D reason:
Urine output of 50 mL in 4 hr is a sign of oliguria, not safety. Magnesium sulfate can cause renal impairment and fluid retention if given in excess. The nurse should monitor the client's urine output and stop the infusion if it falls below 30 mL/hr.
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