LP200586-8
b-wave amplitude
Active
Description
The b-wave is an electroretinographic (ERG) measurement of the corneal-positive deflection, derived from the inner retina (predominantly Muller and ON-bipolar cells). The hyperpolarization of the photoreceptor cells results in a decrease in the amount of neurotransmitter released, which subsequently leads to a depolarization of the post-synaptic bipolar cells. The bipolar-cell depolarization increases the level of extracellular potassium, subsequently generating a transretinal current. It is this transretinal current that depolarizes the radially oriented Muller cells and generates the corneal-positive deflection. The b-wave amplitude is generally measured from the trough of the a-wave to the peak of the b-wave. This wave is the most common component of the ERG used in clinical and experimental analysis of human retinal function. Source: Regenstrief LOINC
Basic Part Properties
- Part Display Name
- b-wave amplitude
- Part Type
- Component (Describes the core component or analyte measured)
- Created On
- 2015-10-07
- Construct for LOINC Short Name
- b-wave amp
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- CodeSystem lookup
- https:
//fhir.loinc.org/CodeSystem/$lookup?system=http: //loinc.org&code=LP200586-8
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| zh-CN | Chinese (China) | b-波振幅 Synonyms: b-波振幅（波幅、 |
| it-IT | Italian (Italy) | onda B ampiezza Synonyms: ampiezza dell''onda B |
LOINC Copyright
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