Exercise Testing, Arterial/Digit Plethysmography and Pressure

Question 1

interpretation post treadmill exercise pressure measurements: length of time to recover

what is considered single level disease, and multi-level disease

Answer 1

single level disease: 2-6 minutes
multi-level disease: 6-12 minutes

Question 2

when performing PVR how does medial calcification affect results

Answer 2

pressure is unaffected if collaterals are present

Question 3

Photo-plethysmography detects

Answer 3

Cutaneous blood flow

Presence / severity of significant arterial disease

Question 4

Characteristic of peaked waveform

Answer 4

Highly specific for vasospasm, particularly raynauds

Question 5

When is cold stress test considered positive

Answer 5

If waveforms do not return to baseline within 5”