Template:PERCRule

PERC rule

Age > 49	1 0	+1
HR > 99/min	1 0	+1
Oxygen sats < 95%	1 0	+1
One leg swollen	1 0	+1
Previous VTE	1 0	+1
Coughing blood	1 0	+1
Surgery or trauma in last 4 wks	1 0	+1
Estrogen use	1 0	+1
Score