Serial pulmonary function tests after pregnancy
| 2 months post partum | 4 months post partum | 7 months post partum | |
| FEV1
(% predicted) | 1.01 (32%) | 1.09 (34%) | 1.06 (33% |
| FVC (% predicted) | 1.07 (29%) | 1.21 (33% | 1.09 (30%) |
| Ratio | 94 | 90 | 98 |
| SNIP cmH2O | −27 | −22 | −20 |
| Cough peak flow L/min | Unobtainable | Unobtainable | Unobtainable |
| pH | 7.41 | 7.45 | 7.46 |
| Pco2 | 5.24 | 4.55 | 4.18 |
| PO2 | 9.90 | 13 | 11.86 |
| HCO3 − | 24.30 | 22.90 | 22 |
| Oxygen saturations | 96 | 98.10 | 97 |