Arterial Self Assessment

Question 1

Which of the following is not true about laminar flow?

A. layers of fluid particles are moving against one another.
B. Fastest flow is in the center stream
C. A stationary layer is at the wall
D. Flow patterns have a flattened profile

Answer 1

D

Question 2

Which of the following is not true about a hemodynamically significant stenosis?

A. There is a notable reduction in volume flow
B. A notable reduction in pressure is evident
C. A 75% diameter reduction is equivalent to a 50% area reduction
D. Distal effects may only be detectable following stress

Answer 2

C

Question 3

While completing an Allen test, flow to the right index finger becomes absent during manuel compression of the radial artery. What is this finding most consistent with?

A. Documents a patients Palmer arch
B. Radial artery is only source of flow to the digits
C. Ulnar artery is predominate source of flow to hand
D. Flow to the digits is within normal limits

Answer 3

B