Professional
Technical
In the Industry Vocabulary Test
CMAP
Also written as: CMAP — Compound Muscle Action Potential
Compound muscle action potential measured during nerve conduction studies.
Full Definition
Compound muscle action potential (CMAP) is the electrical response recorded from a muscle when its motor nerve is stimulated. In nerve conduction studies, CMAP amplitude and latency provide crucial information about motor nerve function and muscle integrity. Reduced CMAP amplitudes may indicate axonal loss, while prolonged latencies suggest demyelination.
Usage
Usage note: Always capitalize when used as abbreviation.
In Context
- "CMAP amplitude was severely reduced in the median nerve distribution." — Nerve conduction study
- "Normal CMAP latencies exclude significant demyelinating neuropathy." — Electrophysiology report
Also known as
compound muscle action potential
Don't confuse with
SNAP
MUAP