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resources:pulm:interpreting_pfts [2023/12/20 20:02] – [Bronchodilator Response] admin | resources:pulm:interpreting_pfts [2024/03/08 18:32] (current) – [Assessing Restriction] admin | ||
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- Calculation | - Calculation | ||
- | - $ BDR = \frac{FEV1_{postBD} - FEV1_{preBD}}{FEV1_{preBDd}}$ | + | - $ BDR = \frac{FEV1_{postBD} - FEV1_{preBD}}{FEV1_{preBD}}$ |
- **NOTE: this differs from ERS/ATS calculation** | - **NOTE: this differs from ERS/ATS calculation** | ||
+ | |||
+ | ==== Methacholine Challenge ==== | ||
+ | [[https:// | ||
+ | |||
+ | ===Response Categorization === | ||
+ | {{: | ||
+ | |||
+ | === Testing Protocol === | ||
+ | {{: | ||
===== DLCO Severity===== | ===== DLCO Severity===== | ||
=== ERS / ATS Definition === | === ERS / ATS Definition === | ||
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=== 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 | |