The nurse is caring for a 4-month-old infant in the emergency department. The nurse reviews the infant's medical record and assessment findings. Which of the following conditions should the nurse suspect, and what actions should the nurse take to address that condition, and what parameters should the nurse monitor to assess the infant's progress?
The nurse should suspect that the infant has
failure to thrive.
microcephaly.
hydrocephalus.
macrocephaly.
The Correct Answer is C
Choice A reason: Failure to thrive is not a likely condition, as it is a term used to describe inadequate growth or weight gain in children. The infant has a low weight percentile, but not below the 5th percentile, which is the usual cutoff for failure to thrive. The infant's length and head circumference are within the normal range, which also does not indicate failure to thrive.
Choice B reason: Microcephaly is not a probable condition, as it is a condition where the head size is much smaller than normal for the age and sex of the child. The infant has a high head circumference percentile, which is the opposite of microcephaly. Microcephaly can be caused by genetic disorders, infections, or brain damage.
Choice C reason: Hydrocephalus is a possible condition, as it is a condition where excess cerebrospinal fluid accumulates in the brain, causing increased pressure and enlargement of the head. The infant has a high head circumference percentile, which can indicate hydrocephalus. The infant also has a low weight percentile, which can be a result of poor feeding or vomiting due to increased intracranial pressure. T
Choice D reason: Macrocephaly is not a definite condition, as it is a term used to describe a head size that is much larger than normal for the age and sex of the child. The infant has a high head circumference percentile, but not above the 97th percentile, which is the usual cutoff for macrocephaly. Macrocephaly can be caused by genetic factors, benign familial macrocephaly, or other conditions, such as hydrocephalus.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: A respiratory rate of 24 breaths/min is within the normal range for a 3-year-old child. It does not indicate the degree of hydration or dehydration of the child.
Choice B reason: A heart rate of 130/min is above the normal range for a 3-year-old child, which is 80 to 120/min. It may indicate dehydration, fever, pain, or anxiety. It does not indicate the effectiveness of oral rehydration therapy.
Choice C reason: A urine specific gravity of 1.015 is within the normal range for a child, which is 1.005 to 1.030. It indicates that the child's urine is adequately concentrated and that the child is well hydrated. It is a reliable indicator of the effectiveness of oral rehydration therapy.

Choice D reason: A capillary refill of greater than 3 seconds is abnormal and indicates poor peripheral perfusion. It may be a sign of dehydration, shock, or hypothermia. It does not indicate the effectiveness of oral rehydration therapy.
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"D"}
Explanation
Choice A reason: Hypovolemia is a condition of low blood volume due to fluid loss from the burn injury. It can cause decreased urine output, hypotension, tachycardia, and poor skin turgor. The nurse should monitor the client's vital signs, fluid intake and output, and weight. The nurse should administer lactated Ringer's solution to maintain urine output of 30 ml/hr.
Choice B reason: Hyperkalemia is a condition of high potassium levels in the blood due to cellular damage from the burn injury. It can cause peaked T waves, dysrhythmias, muscle weakness, and cardiac arrest. The nurse should monitor the client's serum potassium levels, electrocardiogram, and cardiac status. The nurse should avoid administering potassium-containing fluids or medications.
Choice C reason: Hypocalcemia is a condition of low calcium levels in the blood due to fluid shifts from the burn injury. It can cause positive Chvostek's sign, tetany, seizures, and hypotension. The nurse should monitor the client's serum calcium levels, neurological status, and blood pressure. The nurse should administer calcium supplements as prescribed.
Choice D reason: Hypernatremia is a condition of high sodium levels in the blood due to fluid loss from the burn injury. It can cause dry mucous membranes, thirst, agitation, and seizures. The nurse should monitor the client's serum sodium levels, hydration status, and mental status. The nurse should administer hypotonic fluids as prescribed.
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