MSK Quiz#4, Brachial Plexus and Injuries  

1. A newborn presents with a "waiter's tip" position of the right arm following a difficult delivery involving shoulder dystocia. Which part of the brachial plexus is most likely injured? 

Question 1 of 5

2. A patient involved in a motorcycle accident presents with a claw hand deformity and a loss of sensation in the medial aspect of the forearm and hand. Which part of the brachial plexus is likely injured? 

Question 2 of 5

3. A patient complains of pain and tingling in the upper limb and hand when lifting heavy objects overhead. Examination reveals diminished radial pulse strength when the patient's head is turned to the opposite side. Which condition is most likely responsible for these symptoms? 

Question 3 of 5

4. After a traumatic injury from a fall, a patient is unable to raise their arm above their head and has a noticeable protrusion of the scapula on the affected side. Which nerve injury is most likely responsible for these findings? 

Question 4 of 5

5. A patient presents with weakness in lateral rotation of the arm and a diminished sensation over the deltoid muscle following a surgical procedure near the neck. Which part of the brachial plexus is most likely affected? 

Question 5 of 5


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