Penile Pressures and Waveforms - Duplex/Color Flow Imaging Evaluation

Question 1

penile pressures and waveforms help determine ___

Answer 1

help determine whether an individual’s failure to attain or maintain a sufficient erection is related to peripheral vascular insufficiency

Question 2

penile duplex/color flow imaging combined with ergometry, may indicate (3)

Answer 2

pelvic steal
arterial vasospasm
ipsilateral arterial occlusive disease

Question 3

obtain penile pressures from 2 or 3 sites using ___

Answer 3

PPG
pulse volume plethysmography
CW Doppler

Question 4

penile/brachial index (PBI)

normal
marginal
abnormal

Answer 4

normal ( ≥ 0.75 )
marginal ( 0.65 - 0.74 )
abnormal ( < 0.65 )

Question 5

measure ___ arteries bilaterally and their PSVs before the urologist injects a vasodilator to induce erection

Answer 5

cavernous arteries

Question 6

penile waveforms

pre-injection = ___ resistance
post-injection = ___ resistance

Answer 6

pre-injection - high resistance
post-injection - lower resistance until erection

Question 7

penile PSVs ___ after injection

Answer 7

increase after injection

Question 8

penile PSVs post-injection

normal
marginal
reduced

Answer 8

normal ( > 30 cm/sec )
marginal ( 25 - 29 cm/sec )
reduced ( < 25 cm/sec )

Question 9

deep dorsal venous flow velocities should NOT ____

Answer 9

should NOT increase

Question 10

deep dorsal venous flow post-injection

normal
moderately increased
markedly increased

Answer 10

normal ( < 3 cm/sec )
moderately increased ( 10 - 20 cm/sec )
markedly increased ( > 20 cm/sec )

Question 11

what is a varicocele?

Answer 11

enlargement of the veins of the spermatic cord

Question 12

varicoceles are most common on the ___ side

Answer 12

left

Question 13

varicocele

___ flow is noted during Valsalva maneuver

Answer 13

reverse flow