Which symptom must resolve before a child with AGN can resume walking?

In the context of Acute Glomerulonephritis (AGN), the symptoms of hematuria (blood in urine), edema (swelling due to fluid retention), and hypertension (increased blood pressure) are directly related to the renal condition itself. These symptoms indicate that the kidneys are not functioning properly and can lead to serious complications if they persist.

Before a child is allowed to engage in physical activities such as walking, it is crucial that these symptoms resolve. This ensures that the child is stable, not at risk for acute complications, and that the underlying renal issues are improving. Resuming physical activity while still experiencing hematuria, edema, or hypertension can worsen the child's condition and lead to further health complications.

Other symptoms like abdominal pain, weight loss, and appetite suppression, while they may be significant and need addressing, do not pose the same immediate risk as the core symptoms associated with AGN. Focusing on the renal-related symptoms allows for a safer return to activity, promoting a healthy recovery process.