Interpretation of spirometry should never be determined solely by software from the machine or results service.
Reporting spirometry results
- The normality or not of the shape of the volume-time and flow-volume curves
- The normality or not of the measured values of FEV1, FVC, VC and the calculated values FEV1/FVC & FEV1/VC
- A comment on whether the pattern fits a normal, restrictive, obstructive or mixed pattern
- If the pattern is obstructive, grading of severity as per chosen guideline
- The bronchodilator response is reported as showing significant reversibility or irreversibility according to chosen guideline
- Comment on the quality of the measurements
- A summary statement answering the original question asked by the referrer
- Suggestions for further tests, urgent treatment(s) or referral to a specialist
The use of spirometry electronic templates is preferred because it promotes continuity of care, effective communication across service providers, and data retrieval for audit purposes.
Lung function impairment has a bearing on exercise capacity, disability and employment, quality of life, morbidity and mortality.
In several studies, FEV1, post-bronchodilator FEV1, post-bronchodilator FEV1 % predicted and FEV1/height2 were found to correlate best with all-cause mortality.
For general purposes, severity of lung function impairment is based on FEV1 % predicted, however using SR’s are the most physiologically and statistically correct method to interpret normality, or abnormality.
Mark as Understood
