Table 1.

Modified Pediatric Early Warning Score (PEWS).

Category	Score
	0	1	2	3
Behavior	Playing, appropriate, at patient’s baseline	Inappropriately sleepy or fussy but consolable	Irritable or inconsolable	Lethargic/confused or reduced response to pain
Cardiovascular	Pink or capillary refill <2 seconds	Pale or capillary refill 3-4 seconds or mild tachycardia or single ventricle shunted (BTa shunt or Norwood/Sano)	Gray/dusky or capillary refill 4-5 seconds or moderate tachycardia	Gray/mottled or capillary refill >5 seconds or severe tachycardia or new onset bradycardia
Respiratory	Within normal parameters, no retractions	Mild tachypnea or using accessory muscles or >30% FiO2 or >0.5 L/min/kg	Moderate tachypnea or retractions or >40% FiO2 or >1 L/min/kg	Severe tachypnea or RRb < normal for age or >50% FiO2 or >1.5 L/min/kg

^aBT: Blalock-Taussig.

^bRR: respiratory rate.