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Thread: Swollen knee!!

  1. #1
    skinyballs is offline Permanently Banned 510 points
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    Swollen knee!!

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    A 34-year-old man presents with a swollen left knee of 2 days' duration. He denies any known trauma to that region and has no prior history of any musculoskeletal complaints. He is in otherwise excellent health. He is homosexual and practices safe sex with a single partner. On physical examination, his knee is swollen, tender to palpation, and erythematous and has a limited range of motion. An arthrocentesis is performed. Which of the following is most suggestive of a septic arthritis in this patient?

    A. A complete blood cell count with 14,300 white blood cells per mL
    B. A joint fluid aspirate with a white blood cell count of 28,000 per mL
    C. A joint fluid aspirate with a white blood cell count of 36,000 per mL
    D. A joint fluid aspirate with a white blood cell count of 48,000 per mL
    E. A joint fluid aspirate with a white blood cell count of 93,000 per mL

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    Last edited by Doc; 08-17-2007 at 06:19 PM. Reason: Copyright infringement

  2. #2
    edved100 is offline Junior Member
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    I think E.

  3. #3
    unregistered is offline Junior Member 510 points
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    E.
    WBC count in synovial fluid more than 50,000 is indicative of septic arthritis.

  4. #4
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    MDXRS22 is offline Ultimate Member 515 points
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    Yes. E.
    WBC elevated
    I need to think about something...maybe you know what...

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