Factor	Degree of dehydration
	Normal	< 5%	5 to 10%	> 10%
Capillary refilling time8	0.8 seconds	1.5 seconds or less	1.5 to 3.0 seconds	> 3.0 seconds
Elevated BUN (normal BUN: 8 to 25 mg per dL9)	< 10 mg per dL	10 to 20 mg per dL	21 to 25 mg per dL	> 25 mg per dL
Skin turgor9	Normal	Slightly decreased	Decreased	Decreased (pinch retracts slowly >2 seconds)
Deep and rapid, acidotic breathing (pH < 7.35; decreased bicarbonate)9	Normal	Slightly increased respiratory rate	Increased respiratory rate	Breathing is deep and rapid
General state1
Infants and young children		Thirsty, alert, restless	Restless or lethargic: irritable to touch	Limp, drowsy; may be comatose; cyanotic extremities (cold sweats)
Older children		Thirsty, alert, restless	Thirsty, alert, postural hypotension	Usually conscious; wrinkled skin at fingers and toes; cyanotic extremities (cold sweats)
Pulse		Slight increase; normal strength	Rapid and weak	Rapid, feeble, sometimes impalpable
Systolic blood pressure		Normal	Decreased	May be unrecordable