14
Diagnosis
Resting ABI, with or without PVR
and/or Doppler waveforms
Resting ABI >0.9
and ≤1.40
Resting ABI + segmental leg
pressures with PVR and/or
Doppler waveforms*
(2a)
For suspected
signs/symptoms (1)
Resting ABI
>1.40
Symptoms
are functionally
limiting and response to
GDMT (including structured
exercise) is inadequate/
revascularization is
being considered?
YES
Patients with suspected or at
risk of PAD (excluding CLTI)
NO
Seek alternative
diagnosis
(Table 7)
GDMT and
foot care
(1)
For at risk (2a)
Asymptomatic
PAD
Diagnosis of
PAD confirmed?
Duplex ultrasound, CTA, MRA,
or catheter angiography to
assess anatomy/determine
revascularization strategy
(1)
YES NO
Resting ABI ≤0.9
YES NO
Chronic
symptomatic PAD
Exercise
treadmill ABI
(1)
TBI with
waveforms
(1)
Figure 2. Algorithm for Diagnostic Testing for PAD
Exercise
treadmill ABI
(1)
Exercise
treadmill ABI
(2a)
