Here is a full, plain-language interpretation of your sister's PFT report.
Patient Details
- Name: Maloth Thanuja | Age: 29 years | Sex: Female
- Height: 155 cm | Weight: 48 kg | Smoker: No
- Date: 16/07/2026
Key Values - What the Numbers Say
| Parameter | Predicted | Measured (Pre) | % of Predicted | What it means |
|---|
| FVC | 2.35 L | 1.20 L | 51% | Total air she can blow out - severely reduced |
| FEV1 | 1.90 L | 0.64 L | 34% (approx) | Air in first second - severely reduced |
| FEV1/FVC% | 80.99 | 53.37 | — | Ratio is LOW = obstruction confirmed |
| FEV3/FVC% | 97.00 | 93.20 | 115 | Near normal at 3 sec |
| PEFR | 6.28 | 1.63 | 26% | Peak expiratory flow - severely reduced |
| FEF 25-75 | 2.85 | 1.38 | 49% | Mid-flow = small airway obstruction |
| FEF 75-85 | -- | 0.83 | -- | Very low - severe small airway narrowing |
| FEV5 | -- | 1.63 | -- | Still low at 5 seconds |
| MVV | 105.78 | 11.90 | 11% | Maximum breathing capacity - severely impaired |
| Lung Age | 29 yrs | 40 yrs | 138% | Her lungs function like a 40-year-old |
Official Report Findings
Pre-Medication Report:
- Early Small Airway Obstruction is present
- Spirometry shows Moderate Restriction (FVC% < 65)
- FEV1/FVC% > 70 (it is 53, which actually means obstruction is present - the machine flagged the restrictive FVC pattern)
Final Interpretation (handwritten):
"Mixed Obstructive and Restrictive Disorder - Correlate Clinically"
- COPD Severity post-bronchodilator: Restrictive pattern noted
What "Mixed Obstruction + Restriction" Means
Her lungs have two problems happening together:
1. Obstructive component (FEV1/FVC = 53%, which is below the normal cutoff of 70%)
- The airways are narrowed (bronchospasm, mucus, inflammation)
- Air flows out slowly and incompletely
- This is consistent with her allergic bronchitis / asthma
2. Restrictive component (FVC = 51% of predicted, severely reduced)
- The total volume of air she can move is also reduced
- This means her lungs cannot fully expand
- In the context of asthma without smoking history, this likely reflects air trapping (gas gets trapped behind blocked small airways, reducing the usable lung volume), or a co-existing condition like chest wall stiffness
MVV = only 11% of predicted (11.90 L/min vs predicted 105.78 L/min) - this is the most striking finding. Her maximal breathing capacity is severely reduced, indicating significant breathing work impairment.
Severity Assessment
| Domain | Severity |
|---|
| Airflow obstruction | Moderate-to-Severe (FEV1/FVC 53%) |
| Lung volume (FVC) | Severe restriction (51% predicted) |
| Peak flow | Severe (26% predicted) |
| Overall functional lung age | 40 years (vs actual age 29) |
What This Means for Her Treatment
This PFT result explains and justifies why her doctor prescribed 4 inhalers:
- The severe mixed pattern means she needs both an anti-inflammatory (steroid) and multiple bronchodilators working together
- The tiotropium (OVR-9) in particular makes sense here - it helps keep airways open 24 hours and is especially useful when both obstruction and restriction are present
- The low MVV (11%) suggests she may feel very breathless with even light activity
The report recommends clinical correlation - meaning her doctor needs to review these numbers in context with her symptoms, examination, and response to inhalers.
⚠️ Important: These values are pre-bronchodilator. Post-bronchodilator values are missing (marked "--") which means either the test was not done with bronchodilator, or results were not recorded. A post-bronchodilator test would tell the doctor how much of the obstruction is reversible with her inhalers. Please ask her doctor about this, as it is important for adjusting treatment.