A nurse is assessing a client who has rheumatoid arthritis. Which of the following findings should the nurse expect?

The correct answer is B: Ulnar deviation. In rheumatoid arthritis, ulnar deviation of the fingers is a common finding due to inflammation and destruction of the joints. This deformity leads to the fingers deviating towards the ulnar side of the hand. This is a characteristic feature seen in rheumatoid arthritis and is caused by the inflammation affecting the joints. Choices A, C, and D are incorrect. A: Unilateral joint involvement is not typical of rheumatoid arthritis, as it usually affects multiple joints symmetrically. C: Decreased sedimentation rate is not expected in rheumatoid arthritis, as it is typically associated with an elevated sedimentation rate due to inflammation. D: Fractures of the spine are not a common finding in rheumatoid arthritis, as it primarily affects the joints.