A nurse is reviewing the medical record of a school-age child who was admitted for suspected physical maltreatment. Which of the following findings in the child's medical history should the nurse identify as a potential risk factor for physical maltreatment?

Choice A rationale:
Extremities warm to the touch. This manifestation is not indicative of decreased cardiac output. Warm extremities suggest adequate peripheral perfusion and circulation. In a child with decreased cardiac output, the body might attempt to shunt blood away from the extremities to prioritize vital organs, leading to cooler extremities.
Choice B rationale:
Capillary refill 2 seconds. A capillary refill time of 2 seconds is within the normal range for a preschool-aged child. This quick capillary refill suggests adequate circulation and is not a sign of decreased cardiac output. Prolonged capillary refill time might be indicative of poor peripheral perfusion.
Choice C rationale:
Blood pressure 112/66 mm Hg. While a blood pressure of 112/66 mm Hg might be within the normal range for a preschooler, it is not the most reliable indicator of decreased cardiac output. Blood pressure can be influenced by various factors, and a seemingly normal blood pressure does not rule out decreased cardiac output if other manifestations are present.
Choice D rationale:
Diminished pulses. This is the correct choice. Diminished or weak pulses are indicative of decreased cardiac output. Inadequate blood volume being pumped by the heart can lead to reduced peripheral perfusion, resulting in diminished pulses. This sign is important in assessing the child's cardiovascular status postoperatively, especially after a corrective procedure for tetralogy of Fallot.

Choice A rationale:
Hypertension is a common manifestation of acute glomerulonephritis. The inflammation of the glomeruli in the kidneys can lead to impaired filtration, causing fluid retention and an increase in blood pressure. Monitoring the child's blood pressure is crucial to assess the severity of the condition and guide appropriate interventions.
Choice B rationale:
Dehydration is not a typical manifestation of acute glomerulonephritis. In fact, this condition often leads to fluid retention due to impaired kidney function. The child might experience edema and hypertension rather than dehydration.
Choice C rationale:
Muehrcke lines on the nails are not associated with acute glomerulonephritis. Muehrcke lines are white lines that appear horizontally across the nails and are typically indicative of hypoalbuminemia, which is not a primary feature of glomerulonephritis.
Choice D rationale:
Hypokalemia, or low potassium levels, is not a characteristic manifestation of acute glomerulonephritis. This condition primarily affects the kidneys' ability to filter waste and excess fluid, leading to fluid retention, electrolyte imbalances, and hypertension.