Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Musculoskeletal problems of the wrist and hand other diagnostic studies
Introduction
Other Diagnostic Studies
Other Diagnostic Studies
Nerve Conduction Studies
- Indicated if suspected median nerve compression
- Nerve conduction velocity (NCV) decreased in 70% of cases; high PPV, but sensitivity low
Positive Median Nerve Block/or Steroid Injection
- Can be used to confirm suspected diagnosis of CTS
- Simultaneous steroid injection is therapeutic as well as diagnostic
- Significant risk complications (nerve atrophy or necrosis): should only be performed by an expert
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]