The newborn diagnosed with phenylketonuria (PKU) will require long-term follow-up to assess for the development of:
Obesity
Diabetes insipidus
Respiratory distress
Cognitive impairment
The Correct Answer is D
Choice A reason:
Obesity is not a common complication of phenylketonuria (PKU), a genetic disorder that causes increased levels of phenylalanine (an amino acid) in the body. Obesity may be related to other endocrine disorders, such as hypothyroidism or Cushing syndrome.
Choice B reason:
Diabetes insipidus is a condition that causes excessive thirst and urination due to a lack of antidiuretic hormone (ADH) or a problem with the kidneys' response to ADH. It is not caused by PKU, which affects the metabolism of phenylalanine.
Choice C reason:
Respiratory distress is not a typical symptom of PKU, although some newborns with PKU may have a musty odor in their breath, skin, or urine due to the buildup of phenylalanine.
Respiratory distress may be caused by other conditions, such as asthma, pneumonia, or congenital heart defects.
Choice D reason:
Cognitive impairment is the most serious complication of PKU if it is not diagnosed and treated early. High levels of phenylalanine can damage the brain and cause irreversible intellectual disability, neurological problems, and behavioral issues. Early intervention with a special diet that limits phenylalanine intake can prevent or reduce cognitive impairment in children with PKU.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
Asymmetrical breathing is not a sign of meconium aspiration syndrome (MAS). It is a sign of diaphragmatic hernia, a condition where the abdominal organs push into the chest cavity and interfere with lung development.
Choice B reason:
Born before 38 weeks gestation is not a sign of MAS. It is a risk factor for respiratory distress syndrome (RDS), a condition where the lungs are not fully developed and lack surfactant, a substance that helps keep the air sacs open.
Choice C reason:
Yellow-green staining on the umbilical cord is a sign of MAS. It indicates that the baby has passed meconium into the amniotic fluid before or during birth and may have inhaled it into the lungs. Meconium is a sticky substance that becomes the baby's first poop. It can block or irritate the airways, damage lung tissue and prevent oxygen exchange.
Choice D reason:
Acrocyanosis is not a sign of MAS. It is a normal finding in newborns where the hands and feet appear bluish due to immature circulation. It usually resolves within 24 to 48 hours after birth.
Correct Answer is C
Explanation
Choice A reason:
Tremors are not a sign of hyperbilirubinemia, but they may indicate other problems such as hypoglycemia, hypocalcemia, or seizures. Tremors are involuntary muscle movements that can affect different parts of the body.
Choice B reason:
Newborn rash, also known as erythema toxicum, is a common and harmless skin condition that affects many newborns. It causes red spots with white or yellow centers on the face, chest, back, or limbs. It is not related to hyperbilirubinemia or liver function.
Choice C reason:
Cephalohematoma is a collection of blood under the scalp that occurs due to trauma during delivery. It can increase the risk of hyperbilirubinemia because the breakdown of red blood cells in the hematoma releases bilirubin into the bloodstream. Bilirubin is a yellow pigment that is normally processed by the liver and excreted in stool and urine. If the liver is overwhelmed by the amount of bilirubin, it can cause jaundice, which is yellowing of the skin and eyes.
Choice D reason:
Acrocyanosis is a bluish discoloration of the hands and feet that occurs in some newborns due to poor circulation. It is usually a normal and transient phenomenon that does not indicate any serious problem. It is not a sign of hyperbilirubinemia or liver dysfunction.
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