Which assessment data would cause the nurse to suspect that a pediatric client is experiencing ...

1, 3, 4
Explanation:
1. Increased work of breathing is an early sign of shock, indicating compensation for decreased cardiac output and volume.
2. Bradycardia is a late and ominous sign of shock indicating that the child is no longer able to compensate.
3. Tachycardia is an early compensatory mechanism for hypovolemia in a child.
4. Decreased capillary refill time would be an early indicator of decreased fluid volume and compensation.
5. Decreased blood pressure is a later finding and would not occur until other compensatory mechanisms were exhausted.