A patient is able to flex his right arm forward without difficulty or pain but is unable to abduct his arm because of pain and muscle spasms. The nurse should suspect:
a. Crepitation.
b. Rotator cuff lesions.
c. Dislocated shoulder.
d. Rheumatoid arthritis.
ANS: B
Rotator cuff lesions may limit range of motion and cause pain and muscle spasms during abduction, whereas forward flexion remains fairly normal. The other options are not correct.
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