Professional
Technical
In the Industry Vocabulary Test
repetitive nerve stimulation
Electrophysiological test using repeated nerve stimulation to detect neuromuscular junction disorders.
Full Definition
Repetitive nerve stimulation (RNS) is a specialized electrophysiological technique that delivers repeated electrical stimuli to a motor nerve while recording muscle responses. The test is primarily used to diagnose neuromuscular junction disorders like myasthenia gravis and Lambert-Eaton syndrome. A decremental response (>10% amplitude drop) suggests impaired neuromuscular transmission.
Usage
Usage note: Often abbreviated as RNS in clinical documentation.
In Context
- "Repetitive nerve stimulation showed significant decrement in facial muscles." — Electrophysiology report
- "Normal repetitive nerve stimulation does not exclude mild neuromuscular junction dysfunction." — Clinical interpretation
Also known as
RNS
Don't confuse with
single fiber EMG
nerve conduction study