Which of the following imaging modalities is commonly used to diagnose osteoarthritis?
MRI (Magnetic Resonance Imaging)
CT scan (Computed Tomography)
X-ray (Radiography)
Ultrasound
The Correct Answer is C
X-ray imaging is commonly used to diagnose osteoarthritis. It can visualize joint space narrowing, bone spurs, and other changes associated with the disease.
a. MRI is more commonly used to assess soft tissue structures and is not the first-line imaging modality for osteoarthritis.
b. CT scan is not typically used for diagnosing osteoarthritis due to its higher radiation exposure compared to X-ray.
d. Ultrasound is not commonly used for diagnosing osteoarthritis; it is more useful for soft tissue assessment.
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Related Questions
Correct Answer is C
Explanation
Osteoarthritis commonly affects the distal finger joints, such as the DIP (distal interphalangeal) and PIP (proximal interphalangeal) joints. This form of osteoarthritis is known as Heberden's and Bouchard's nodes, respectively.
a. Osteoarthritis is not an autoimmune disorder; it is a degenerative joint disease.
b. Unlike rheumatoid arthritis, osteoarthritis is not characterized by joint inflammation and swelling.
d. While osteoarthritis primarily involves synovial joints, it is not limited to these joints.
Correct Answer is B
Explanation
MRI is the most appropriate diagnostic test to confirm the diagnosis of osteoarthritis. It can provide detailed images of the affected joints, allowing the healthcare provider to assess the joint structures, cartilage, and bone for signs of osteoarthritis. Rheumatoid factor (RF) blood test and C-reactive protein (CRP) blood test are used to diagnose inflammatory arthritis conditions like rheumatoid arthritis, not osteoarthritis. Synovial fluid analysis is usually performed to assess for infection or inflammation in the joint, not to diagnose osteoarthritis.
a. Rheumatoid factor (RF) blood test is used to diagnose inflammatory arthritis conditions like rheumatoid arthritis, not osteoarthritis.
c. C-reactive protein (CRP) blood test is used to diagnose inflammatory conditions, but it is not specific to osteoarthritis.
d. Synovial fluid analysis is usually performed to assess for infection or inflammation in the joint, not to diagnose osteoarthritis.
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