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resources:pulm:interpreting_pfts [2023/12/20 14:46] – [Interpretation Position] admin | resources:pulm:interpreting_pfts [2024/03/08 18:32] (current) – [Assessing Restriction] admin | ||
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=== GOLD Criteria === | === GOLD Criteria === | ||
- | ^ Grade ^ FEV1 Percent Predicted ^ Severity ^ | + | [[https:// |
- | |1| ≥80%|Mild| | + | ^ Grade ^ FEV1 Percent Predicted |
- | |2|50% − 79%|Moderate| | + | | 1 | ≥80% |
- | |3|30% − 49%|Severe| | + | | 2 | 50% − 79% |
- | |4|< | + | | 3 | 30% − 49% |
+ | | 4 | < | ||
==== Bronchodilator Response ==== | ==== Bronchodilator Response ==== | ||
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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:// | ||
+ | |||
+ | ===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 | |