Final answer:
Weighing the child twice per shift is the appropriate nursing intervention for a 6-year-old with moderate edema and mild hypertension due to acute glomerulonephritis to monitor fluid retention and treatment effectiveness.
Step-by-step explanation:
For a 6-year-old child hospitalized with moderate edema and mild hypertension associated with acute glomerulonephritis (AGN), an appropriate nursing intervention would be to weigh the child twice per shift. Monitoring weight is crucial to assess fluid retention and the effectiveness of treatment in conditions like AGN which are characterized by fluid overload due to impaired kidney function.
Encouraging the child to eat protein-rich foods would not be appropriate at this stage, as AGN involves the loss of protein in urine, and a high protein diet could increase the excretory load on the kidneys. Instead, a diet low in protein, sodium, and nitrogen is advised. Physical activity may be limited due to the child's condition, and while relieving boredom is important, activities should be non-strenuous. Seizure precautions are not directly associated with moderate edema and mild hypertension in AGN and would typically be considered if there was a significant risk of seizures, which is not described in this scenario.