91980-3

Specific airway resistance by Plethysmograph body box

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Part Description

LP310432-2 Specific resistance.airway
Specific airway resistance (sRaw) reflects airway resistance (Raw) that has been adjusted for lung volume. It is measured by plethysmography during normal breathing (i.e., tidal breathing), does not require special maneuvers, and is independent of height and sex, so it is commonly used in pediatrics and can be used for children as young as 2. The relationship between sRaw and Raw is: sRaw = Raw * TGV, where TGV is thoracic gas volume. There are different methods used for calculating sRaw from the data gathered during plethysmography, including:
1. sRtot (total specific resistance), which uses the flow measurements at the maximum change in pressure
2. sRaw Vmax, which uses the the measurements at the maximum flow
3. sRaw0.5, which uses the measurements where the flow reaches 0.5 L/s
Specifying the method used to calculate sRaw is important for interpreting the results.
PMID: 16002957 Source: Regenstrief LOINC

LOINC Names Get Info

Fully-Specified Name: Specific resistance.airway:FldResist:Stdy^mean:Respiratory system.airway:Qn:Plethysmograph.body box
Long Common Name: Specific airway resistance by Plethysmograph body box
Short Name: sRaw Plethysmography

Part Model Get Info

Component
Specific resistance.airway
LP310432-2
- Analyte
  Specific resistance.airway
  LP310432-2
  - Component Numerator
    Specific resistance.airway
    LP310432-2
    - Component Numerator Core
      Specific resistance.airway
      LP310432-2
    - Component Numerator Core Suffix
      NULL
  - Component Denominator
    NULL
    - Component Denominator Core
      NULL
    - Component Denominator Core Suffix
      NULL
- Challenge
  NULL
- Adjustment
  NULL
- Count
  NULL
Property
FldResist
LP6815-7
Time
Stdy^mean
LP281592-8
- Time Core
  Stdy
  LP6967-6
- Time Modifier
  mean
  LP6971-8
System
Respiratory system.airway
LP7558-2
- System Core
  Respiratory system.airway
  LP7558-2
- Super System
  NULL
Scale
Qn
LP7753-9
Method
Plethysmograph.body box
LP6453-7

Basic Attributes

Class: PULM
Type: Clinical
First Released: Version 2.66
Last Updated: Version 2.67 (MIN)
Change Reason: Release 2.67: FORMULA: Added alternate formulas based on functional residual capacity measured by plethysmograph body box
Order vs. Observation: Both

Formula (Readable)

Multiple calculation methods: sRaw = Raw * TGV; sRaw = Raw * FRCpleth; sRaw = Raw * (FRCpleth + VT/2); where sRaw is specific airway resistance, Raw is airway resistance, TGV is thoracic gas volume, FRCpleth is functional residual capacity measured by plethysmograph body box, and VT is tidal volume.

Language Variants Get Info

Tag	Language	Translation
el-GR	Greek (Greece)	Ειδική αντίσταση.αεραγωγός:FldResist:Stdy^μέσο:Αναπνευστικό σύστημα.αεραγωγός:Qn:Πληθυσμιογράφος.ολόσωμος θάλαμος Synonyms: FldResist PULM Qn Stdy Αναπνευστικό Αναπνευστικό σύστημα Αναπνευστικό σύστημα.αεραγωγός Αντίσταση.αεραγωγός Ειδική αντίσταση.αεραγωγός μέσο Πληθυσμιογράφος.ολόσωμος θάλαμος
es-MX	Spanish (Mexico)	Resistencia específica vía aérea:FldResistenciat:Estudio^prom:Sistema respiratorio vía aérea.:Cuantitativo:Plethysmograph.body box
it-IT	Italian (Italy)	Resistenza specifica.vie aeree:FldResist:Studio^media:Apparato respiratorio.vie aeree:Qn:Pletismografo.body box Synonyms: Gestione ventilazione polmonare Pletismografo o body box Resistenza di Fluido Via aeree dell''apparato respiratorio
zh-CN	Chinese (China)	特异性阻力.气道:液体阻力:检查过程持续时间^平均值:呼吸系统.气道:定量型:体积描记器.体箱计 Synonyms: 体积变动记录仪.人体体箱计;体积描记器.人体体箱计;容积描记器.人体体箱计可用数量表示的;定量性;数值型;数量型;连续数值型标尺呼吸系统.导气管;呼吸系统.通气导管;呼吸系统导气管;呼吸系统气道;呼吸系统通气导管呼吸道标本（样品、样本）;呼吸系统标本（样品、样本）均值;平均;平均数抗力抗耐性抵抗力抵抗性检查;检查持续时间;检查过程气道阻力;气道阻尼液体电阻;液体电阻抗;液体阻尼物体特异特异性的特异性阻力（比阻力）.气道（呼吸道）;特异性气道阻力;比气道阻力特异的电阻耐性肺部测量指标与呼吸机管理阻力

Example Units

Unit	Source
cm[H2O].s	Example UCUM Units

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LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.