A 30-year-old man presents with acute pain and swelling in his right knee. The joint is red, hot, and tender, with a large effusion. He is febrile (38...

Question

A 30-year-old man presents with acute pain and swelling in his right knee. The joint is red, hot, and tender, with a large effusion. He is febrile (38.5°C) and unable to weight-bear. What is the most urgent investigation required?

Accepted Answer

Joint aspiration and microscopy/culture

Answer

Knee X-ray

Answer

MRI knee

Answer

Blood cultures

Answer

Serum uric acid level

ukmla MCQ (SBA): Septic Arthritis

A 30-year-old man presents with acute pain and swelling in his right knee. The joint is red, hot, and tender, with a large effusion. He is febrile (38.5°C) and unable to weight-bear. What is the most urgent investigation required?