Chapter 6 - Doppler segmental pressure upper extremity Flashcards
1
Q
Discrepancy in BP to suggest > 50% diameter reduction
A
> 15-20 mmHg
2
Q
Rate of incomplete palmar arch
A
50%
3
Q
Limitations of allen test
A
1) excessive dorsiflexion can compress artery
2) forcibly extending fingers can compress small vessels
4
Q
Allen test and modified Allen test
A
- compress radial artery
- use Photoplethysmography on 2-3 fingers
