This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
An alert 6 months old child is brought with vomiting & diarrhea. RR–45/min, HR–130/min, S P–85 mm of Hg. Capillary refilling time is 4 secs. Diagnosis is – 
Select and explain. 
A. Early compensated hypovolemic shock, B. Early decompensated hypovolemic shock, C. Late compensated hypovolemic shock, D. Late decompensated shock due to SVT
A: Early compensated hypovolemic shock
Answer: A: Early compensated hypovolemic shock 
Explanation: Hypovolemic shock in children may have following stages : -


Early compensated : - Immediately after hypovolemia, body tries to maintain the BP to maintain adequate perfusion to vital organs through a compensatory mechanisms.
Late uncompensated : - If shock state continues or the compensatory mechanisms are not enough to maintain the metabolic needs of the tissue, the shock, goes into uncompensated phase.