Advanced Self-Assessment Questions: Text

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Last modified 06/02/2015

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Appendix 3 Advanced Self-Assessment Questions: Text

1. Which division (anterior or posterior) of the obturator nerve provides articular branches to the:

2. True or False? Obturator nerve block can be reliably assessed by testing sensation of the medial thigh.

3. Within the suprascapular notch, the suprascapular nerve lies deep to all of the following anatomic structures except the:

A. trapezius muscle.

B. supraspinatus muscle.

C. infraspinatus muscle.

D. suprascapular ligament.

4. Power Doppler is useful during regional blocks because it is:

A. more sensitive than mean frequency–based color Doppler.

B. less angle dependent than mean frequency–based color Doppler.

C. not subject to aliasing artifacts.

D. all of the above.

5. A 4-MHz sound wave travels through bone at a speed of 4000 m/sec. How fast does a 10-MHz sound wave travel through the same medium?

6. All of the following increase the mechanical index (MI) and thermal index (TI) during ultrasound imaging except:

A. use of Doppler modes (duplex imaging).

B. lowering the insonation frequency.

C. moving the focus deep.

D. increasing the number of focal zones.

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