LOINC
Version 2.71

80234-8A-wave amplitude [Pressure] Right atrium Cardiac catheterizationActive

Part Description

LP72027-3   A wave amplitude
The A wave represents the flow of blood through the mitral or tricuspid valve into the ventricle (ventricular filling) during atrial contraction. During the A wave, upper-case A represents the blood flow velocity (LOINC component: blood flow velocity.A wave) and lower-case a prime (a') represents the annular tissue velocity (LOINC component: tissue velocity.A wave). The A and a' waves follow the E (LOINC component: blood flow velocity.E wave) and e' waves (LOINC component: tissue velocity.E wave), which represent ventricular filling during early diastole, before the start of atrial contraction. [PMID:20451803] Source: DICOM, PMID: 20451803

Fully-Specified Name

Component
A wave amplitude
Property
Pres
Time
Pt
System
Heart.atrium.right
Scale
Qn
Method
Cardiac catheterization

Additional Names

Short Name
A-wave amp RA Cardiac Cath

Basic Attributes

Class
CARD.PROC
Type
Clinical
First Released
Version 2.54
Last Updated
Version 2.56
Order vs. Observation
Observation

Language Variants Get Info

zh-CNChinese (China)
A 波振幅:压力或压强:时间点:心脏.心房.右侧:定量型:心导管插入术
it-ITItalian (Italy)
Onda A, ampiezza:Pres:Pt:Cuore.atrio.destro:Qn:Cateterizzazione cardiaca

Example Units

Unit Source
mm[Hg] Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=80234-8