A nurse is caring for a newborn who exhibits signs of hypotonicity, weak reflexes, and a weak cry.
Hypoglycemia
Hyperbilirubinemia
Preterm birth
Macrosomia
The Correct Answer is A
Hypoglycemia is a condition where the blood glucose level is too low, which can affect the brain and nervous system function. Hypoglycemia can cause symptoms such as hypotonia (low muscle tone), weak reflexes, and a weak cry in newborns.
These symptoms are due to the lack of energy supply to the muscles and nerves.
Choice B. Hyperbilirubinemia is wrong because it is a condition where the blood level of bilirubin, a waste product from red blood cell breakdown, is too high.
Hyperbilirubinemia can cause jaundice (yellowing of the skin and eyes), but not hypotonia, weak reflexes, or a weak cry.
Choice C. Preterm birth is wrong because it is a condition where the baby is born before 37 weeks of gestation.
Preterm birth can cause many complications, such as respiratory distress, bleeding in the brain, and infection, but not hypotonia, weak reflexes, or a weak cry.
Choice D. Macrosomia is wrong because it is a condition where the baby is larger than average at birth, usually weighing more than 4 kg (8 lb 13 oz).
Macrosomia can cause problems during delivery, such as shoulder dystocia, birth injury, and low blood sugar, but not hypotonia, weak reflexes, or a weak cry.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
This presentation is consistent with a newborn who has been in the womb for longer than 42 weeks.Post-term newborns often have dry, peeling, loose skin and may appear abnormally thin.They may also have overgrown nails and large amount of hair on the head.
Choice A is wrong because preterm birth is associated with low birth weight, immature skin, and lanugo (fine hair) on the body.
Choice B is wrong because macrosomia is a condition where the newborn is significantly larger than average, usually due to maternal diabetes or obesity.
Choice C is wrong because hyperbilirubinemia is a condition where the newborn has high levels of bilirubin in the blood, causing jaundice (yellowing of the skin and eyes).
Correct Answer is A
Explanation
The correct answer is choice A. Cerebral palsy.
Hyperbilirubinemia is a condition where there is too much bilirubin in the blood.
Bilirubin is a yellow pigment that is produced when red blood cells break down.
Normally, the liver processes bilirubin and excretes it in bile.
However, if the liver is immature or damaged, or if there is excessive hemolysis of red blood cells, bilirubin can accumulate in the blood and cause jaundice.
If the bilirubin level is very high, it can cross the blood-brain barrier and damage the brain cells, leading to a condition called kernicterus.
Kernicterus can cause cerebral palsy, which is a group of disorders that affect movement and posture.
Choice B. Hypoglycemia is wrong because it is a condition where the blood glucose level is too low.
It can be caused by many factors, such as inadequate intake, excessive insulin or oral hypoglycemic agents, infection, stress, or exercise.
Hypoglycemia can cause symptoms such as sweating, trembling, hunger, confusion, dizziness, or seizures.
It can be treated by giving glucose orally or intravenously.
Choice C. Necrotizing enterocolitis is wrong because it is a condition where the intestinal tissue becomes inflamed and dies.
It can affect premature infants or infants with low birth weight, congenital heart disease, or sepsis.
Necrotizing enterocolitis can cause symptoms such as abdominal distension, bloody stools, vomiting, lethargy, or shock.
It can be treated by stopping enteral feeding, giving antibiotics, and providing supportive care.
In severe cases, surgery may be needed to remove the necrotic tissue.
Choice D. Hypotonicity is wrong because it is a condition where the muscle tone is abnormally low.
It can be caused by many factors, such as nerve damage, spinal cord injury, brain injury, genetic disorders, or electrolyte imbalance.
Hypotonicity can cause symptoms such as weakness, flaccidity, poor posture, or difficulty swallowing.
It can be treated by physical therapy, braces, splints, or medication.
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