Musculoskeletal Injuries
Questions
292.While playing in his family’s annual Thanksgiving Day touch football
game, a 41-year-old man fell onto his outstretched hand upon attempting
to make the winning catch. He presents to the emergency department (ED)
complaining of severe wrist pain. Which of the following carpal bones is
most frequently injured in a fall on the outstretched hand?
a. Triquetrum
b. Lunate
c. Capitate
d. Scaphoid
e. Pisiform
293.A 64-year-old man presents to the ED complaining of knee pain
since yesterday. He denies trauma or similar presentation in the past. On
examination, you note an erythematous, tender, and swollen knee. Radi-
ographs do not reveal a fracture, but do show calcium deposits. Arthrocente-
sis demonstrates 20,000/μL white blood cells (WBCs) with a predominance
of neutrophils, a negative Gram stain, and rhomboid shaped crystals that are
positively birefringent under polarized light. Which of the following is the
most likely diagnosis?
a. Pseudogout
b. Gout
c. Septic joint
d. Rheumatoid arthritis
e. Osteoarthritis
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