When a 2-week-old infant is seen for irritability, poor appetite, and rapid head growth with observable distended scalp veins, the nurse recognizes these signs as indicative of which disorder?
Cerebral palsy
Syndrome of inappropriate antidiuretic hormone (SIADH)
Hydrocephalus
Reye's syndrome
The Correct Answer is C
Hydrocephalus refers to a condition characterized by an abnormal accumulation of cerebrospinal fluid (CSF) within the ventricles of the brain. In infants, hydrocephalus can cause the head to enlarge rapidly as a result of the increased pressure exerted by the accumulating fluid. This is known as "rapid head growth." The increased intracranial pressure canlead to irritability and poor appetite in infants.
The distended scalp veins are another common sign of hydrocephalus. As the fluid accumulates, it puts pressure on theblood vessels in the brain, causing the veins in the scalp to become more visible and distended.
Cerebral palsy in (option A) is incorrect because is a neurological disorder that affects body movement and musclecoordination, but it does not typically present with rapid head growth or distended scalp veins.
Syndrome of inappropriate antidiuretic hormone (SIADH) in (option B) is incorrect because it is a condition characterized by excessive secretion of antidiuretic hormone, leading to fluid imbalance, but it does not usually cause rapid head growth or distended scalp veins. Reye's syndrome (D) is a rare condition that primarily affects the liver and brain, and it does not typically present with rapid head growth or distended scalp veins.
Therefore, based on the signs described, hydrocephalus (C) is the most likely disorder in this case. It is important to seekmedical attention promptly for a proper diagnosis and appropriate management of hydrocephalus in infants.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Hypoglycaemia is characterized by low blood sugar levels. In children, symptoms of hypoglycaemia can vary, but irritability is a common sign. Other signs and symptoms of hypoglycaemia in children may include sweating, trembling, pale skin, hunger, weakness, confusion, and dizziness.
Normal sensorium and serum glucose greater than 160 mg/dL in (Option A) is incorrect because a normal sensorium (normal level of consciousness) and a serum glucose level greater than 160 mg/dL would not be indicative of hypoglycaemia.
Urine positive for ketones and serum glucose greater than 300 mg/dL in (Option B) is incorrect because it describes characteristics of hyperglycaemia (high blood sugar levels) rather than hypoglycaemia. Positive urine ketones and a serum glucose level greater than 300 mg/dL are commonly seen in diabetic ketoacidosis, a complication of high blood sugar levels in diabetes.
Increased urination and serum glucose less than 120 mg/dL in (Option D) is incorrect because it describes increased urination and a serum glucose level less than 120 mg/dL. While a serum glucose level less than 120 mg/dL could indicate hypoglycaemia, increased urination is not a typical sign of hypoglycaemia. Increased urination may be seen in conditions such as diabetes mellitus when blood sugar levels are consistently high.
Correct Answer is B
Explanation
The statement that best describes why infants are at greater risk for dehydration than older children is option B. Infants have an increased extracellular fluid volume compared to older children. This means that a larger proportion of their total body fluid is located outside the cells, in the extracellular compartment. This higher extracellular fluid volume makes infants more susceptible to fluid losses and dehydration if they experience inadequate fluid intake or increased fluid losses.
infants have an increased ability to concentrate urine in (option A), is incorrect. Infants have limited renal function and may have difficulty concentrating urine compared to older children and adults. This can contribute to a higher risk of dehydration in infants.
infants have a greater volume of intracellular fluid in (option C), is incorrect. The volume of intracellular fluid is not the primary factor contributing to the increased risk of dehydration in infants.
infants have a smaller body surface area in (option D) is incorrect because it, is not directly related to the increased risk of dehydration. Body surface area influences heat exchange and fluid loss through sweating but is not the main factor contributing to the higher risk of dehydration in infants.
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