Which finding indicates successful fluid resuscitation in a dehydrated child?

• A. Rehydration with improved perfusion signs, stable vitals, good capillary refill, and adequate urine output
• B. Worsening perfusion signs and persistent tachycardia
• C. Decreased urine output with dry mucous membranes
• D. Persistent lethargy and fever

Answer: (A)

The main idea here is that successful fluid resuscitation is shown by restoration of circulating volume leading to improved tissue perfusion and kidney function. When fluids replenish the intravascular space, the body’s circulation starts to normalize: vital signs settle, capillary refill returns to normal, and perfusion to organs improves. A good indicator that the kidneys are being adequately perfused and fluid status is improving is adequate urine output. Together, these signs show the child is responding to rehydration and that perfusion and renal function have recovered.

If perfusion signs stay poor or tachycardia persists, that suggests ongoing under-resuscitation. Decreased urine output with dry mucous membranes points to continued dehydration. Lethargy and fever can occur for other reasons and don’t specifically indicate that fluid status has improved.