Rheumatoid arthritis and osteoarthritis Quiz: Ace Your Exams
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A 57-year-old man comes to his primary care physician because of right knee pain that began half-a-year ago and has progressively worsened. The patient previously enjoyed running marathons but had to stop because of the joint pain. Over-the-counter acetaminophen and ibuprofen help alleviate the pain. He recently returned from a camping trip in rural Connecticut. Temperature is 37.2°C (99.0°F), blood pressure is 120/75 mmHg, and pulse is 65/min. BMI is 24 kg/m2. No erythema or warmth is noted at the affected joint. Pain and crepitus are elicited on passive flexion and extension of the knee. Laboratory testing reveals the following findings:
Which of the following additional physical examination findings will be most likely present in this patient?
| Laboratory value | Result |
| Hemoglobin | 15.2 g/dL |
| Leukocyte Count | 7,100/mm3 |
| Platelet Count | 320,000/mm3 |
| Erythrocyte sedimentation rate | 12 mm/h |
Which of the following additional physical examination findings will be most likely present in this patient?
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