Finding	Description	ABI	Sensitivity (%)	Specificity (%)	LR+
Abnormal pedal pulse	DP and PT pulses absent	< 0.9	63	99	44.6
	PT and DP pulses absent or one absent and one weak	< 0.9	73	92	9.0
Femoral artery bruit	Bruit present	< 0.8	20	96	4.7
	Bruit present	< 0.9	29	95	5.7
Cool skin	Unilateral cooler skin	< 0.9	10	98	5.8
Abnormal color	Pale, red, or blue	< 0.9	35	87	2.8