Physician Assistant Physician Assistant Musculoskeletal System Disorders

Question 1

A 55-year-old woman presents with bilateral knee pain worse with activity and relieved by rest. X-ray shows joint space narrowing and osteophytes. What is the most likely diagnosis?

Accepted Answer

Osteoarthritis

Answer

Rheumatoid arthritis

Answer

Gout

Answer

Psoriatic arthritis

Question 2

Which laboratory finding is most characteristic of rheumatoid arthritis?

Accepted Answer

Positive rheumatoid factor and anti-CCP antibodies

Answer

Elevated uric acid

Answer

Elevated alkaline phosphatase

Answer

Positive ANA with anti-dsDNA

Question 3

A 30-year-old male presents with acute monoarticular arthritis of the first metatarsophalangeal joint, erythema, and severe pain. Synovial fluid analysis shows negatively birefringent needle-shaped crystals. What is the treatment of choice for an acute attack?

Accepted Answer

Colchicine or NSAIDs

Answer

Allopurinol

Answer

Methotrexate

Answer

Prednisone taper over 6 weeks

Question 4

Which finding on physical examination is most consistent with a complete rotator cuff tear?

Accepted Answer

Inability to initiate abduction with preserved passive range of motion

Answer

Painful arc between 60–120 degrees of abduction

Answer

Positive apprehension sign

Answer

Tenderness over the acromioclavicular joint

Question 5

A patient with low back pain radiating down the posterior leg to the foot has a positive straight leg raise at 45 degrees. Which nerve root is most likely involved?

Accepted Answer

L5 or S1

Answer

L2

Answer

L3

Answer

L4

Question 6

Which medication is classified as a disease-modifying antirheumatic drug (DMARD) and is first-line for rheumatoid arthritis?

Accepted Answer

Methotrexate

Answer

Ibuprofen

Answer

Prednisone

Answer

Celecoxib

A 55-year-old woman presents with bilateral knee pain worse with activity and relieved by rest.X-ray shows joint space narrowing and osteophytes.What is the most likely diagnosis?

A 55-year-old woman presents with bilateral knee pain worse with activity and relieved by rest.
X-ray shows joint space narrowing and osteophytes.
What is the most likely diagnosis?