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Table 2 Follow-up pulmonary function tests

From: The unusual experience of managing a severe COVID-19 case at home: what can we do and where do we go?

Pulmonary Function Tests
Month 3rd Month 4th Month 6th Month
Parameter Absolute Value Predicted (%) Absolute Value Predicted (%) Absolute Value Predicted (%)
Spirometry
 FVC (L) 1.06 40% 1.31 49% 1.38 52%
 FEV1 (L) 0.92 44% 1.12 54% 1.13 54%
 FEV1/FVC (L) 0.87 111% 86.00 109% 81.70 104%
 FEF25–75% (L/s) 1.40 66% 1.71 80% 1.33 63%
DLCO
 DLCO 8.30 41% 12.10 60% 11.70 58%
 DLCO/VA (KCO) 4.52 85% 4.03 76% 4.32 82%
 TLC sb (L) 2.00 51% 3.15 80% 2.86 72%
6-MWT
 6-MWD (M) 264 55% 294 61% 359 75%
 Basal SpO2 (%) 93% N/A 96% N/A 97% N/A
 Post-exercise SpO2 (%) 88% N/A 91% N/A 96% N/A
  1. FVC forced vital capacity, FEV1 forced expiratory volume in 1 s, FEF forced expiratory flow, DLCO diffusing capacity of carbon monoxide, VA alveolar ventilation, KCO carbon monoxide transfer coefficient, TLC total lung capacity, 6-MWT 6-m walk test, 6-MWD 6-m walk distance, SpO2 oxygen saturation