98720-6
ClinicalSpontaneous activity.positive sharp waves of Muscle on EMG
Definition
Positive sharp waves occur when the needle tip damages a muscle fiber, which causes a spontaneous action potential to propagate up to the needle tip. These are similar to muscle fibrillation and also occur in acutely denervated fibers. [PMID: 15961866]
LOINC 6-Axis Classification
Component
Spontaneous activity.positive sharp waves
Property
Find
Time Aspect
Pt
System
Muscle
Scale Type
Ord
Method Type
EMG
Details
Class
NEURO
Order/Observation
Observation
Short Name
Spont activity.PSWs Muscle EMG
Related Names
Frequently Asked Questions
What is LOINC code 98720-6?
LOINC code 98720-6 identifies "Spontaneous activity.positive sharp waves of Muscle on EMG". Positive sharp waves occur when the needle tip damages a muscle fiber, which causes a spontaneous action potential to propagate up to the needle tip. These are similar to muscle fibrillation and also occur in acutely denervated fibers. [PMID: 15961866]
What does 98720-6 measure?
This code measures Spontaneous activity.positive sharp waves in Muscle. It belongs to the NEURO class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.