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resources:pulm:interpreting_pfts [2023/12/20 19:59] – [Table] adminresources:pulm:interpreting_pfts [2024/03/08 18:32] (current) – [Assessing Restriction] admin
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     - $\Delta FEV1_{volume} >200 mL$     - $\Delta FEV1_{volume} >200 mL$
  
 +=== GOLD Definition ===
 +  - Required:
 +    - $BDR >12%$
 +    - $\Delta FEV1_{volume} \geq 200 mL$
 +
 +  - Calculation 
 +    - $ BDR = \frac{FEV1_{postBD} - FEV1_{preBD}}{FEV1_{preBD}}$
 +    - **NOTE: this differs from ERS/ATS calculation**
 +
 +==== Methacholine Challenge ====
 +[[https://doi.org/10.1183/13993003.01526-2016 | Source, ERS 2017]]
 +
 +===Response Categorization ===
 +{{:resources:pulm:methacholine_response.png?900|}}
 +
 +=== Testing Protocol ===
 +{{:resources:pulm:methacholine_challenge.png?600|}}
 ===== DLCO Severity===== ===== DLCO Severity=====
 === ERS / ATS Definition === === ERS / ATS Definition ===
Line 98: Line 115:
  
 === GOLD Definition === === GOLD Definition ===
-^ TLC Percent Predicted ^ Severity ^+  - Required: 
 +    - FVC <80% predicted 
 + 
 +^TLC Percent Predicted^Severity^
 |>70% | Mild | |>70% | Mild |
 |50%-69% | Moderate | |50%-69% | Moderate |
resources/pulm/interpreting_pfts.1703102391.txt.gz · Last modified: 2023/12/20 19:59 by admin