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Which of the following nerve fibers is unmyelinated?

Which of the following factors has the GREATEST influence on spread of spinal local anesthesia? 

Which of the following lower extremity nerves is ONLY sensory? 

Your patient is scheduled for right hand open reduction and internal fixation with a Bier block. Which is the appropriate dose for Bier block?

Which nerve fibers are the smallest diameter (in mm) and are responsible for temperature and dull pain conduction?

Which statement below BEST describes the features of ultrasound probe transducers?

Which nerve fibers transmit information related to sharp pain and temperature and rapidly conduct information.  Local anesthetics act rapidly on these same fibers. 

SELECT TWO true statements about transverse abdominal plane (TAP) block:

Which peripheral nerve block approach to the brachial plexus may potentially spare the musculocutaneous nerve?

Which of the following structures appear hyperechoic, or white,  on ultrasound?