Version 2.78

Part Descriptions

LP101939-9   Physiological dead space
The physiological dead space is the volume of gas in the respiratory system that is not involved in respiratory gas exchange. It includes both alveolar and anatomical dead space. Alveolar dead space is the volume of alveoli that are ventilated but not perfused (or underperfused), and anatomical dead space is the volume of the respiratory system from the nose and mouth to the level of the distal airways at which gas exchange begins to take place.

Physiological dead space can be calculated using Bohr's equation:
Vd/Vt = (PaCO2−PeCO2)/PaCO2.
Vd is the dead space volume
Vt is tidal volume
PaCO2 is arterial partial pressure of CO2
PeCO2 is the partial pressure of CO2 in expired gas Source: Regenstrief LOINC

LP101940-7   Tidal volume
Tidal volume (TV) is the volume of air inspired or expired in a single breath at rest. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Wikipedia

Fully-Specified Name

Component
Physiological dead space/Tidal volume
Property
VRto
Time
Pt
System
Respiratory system
Scale
Qn
Method

Additional Names

Short Name
Phys dead space/TV Respiratory

Basic Attributes

Class
PULM
Type
Clinical
First Released
Version 2.54
Last Updated
Version 2.54
Order vs. Observation
Both

Member of these Panels

LOINC Long Common Name
75885-4 IEEE 11073 Rosetta panel

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Espacio muerto fisiológico / volumen corriente:VRto:Punto temporal:Sistema respiratorio:Cuantitativo:
it-IT Italian (Italy) Spazio morto fisiologico/Volume corrente:Vrto:Pt:Apparato respiratorio:Qn:
Synonyms: Gestione ventilazione polmonare Punto nel tempo (episodio) Rapporto di Volume
ru-RU Russian (Russian Federation) Физиологическое мёртвое пространство/Дыхательный объём:ОбОтн:ТчкВрм:Дыхательная система:Колич:
Synonyms: Количественный Объём отношение Точка во времени;Момент
zh-CN Chinese (China) 生理死腔/潮气量:体积比率:时间点:呼吸系统:定量型:
Synonyms: 体积比 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 呼吸道标本（样品、样本）;呼吸系统标本（样品、样本） 容积 时刻;随机;随意;瞬间 潮气容量;潮气体积;潮气容积 生理性死腔;生理性无效腔;生理无效腔;生理学死腔 肺部测量指标与呼吸机管理

Example Units

Unit Source
% Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=76002-5