Table 1.
Selected arterial blood gas measurements performed during the acute hospital admission
| Date, Time | pH | pCO2 (kPa) | pO2 (kPa) | St. HCO3− (mmol/L) |
NIV therapy | Clinical status |
|---|---|---|---|---|---|---|
| 1-5-14, 06.59 | 7.21 | 15.62 | 34.2 | IPAP 22, EPAP 4 S/T mode, RR 12 FiO2 0.24 Nasal mask NIV with chinstrap |
Changed to face mask NIV just prior to sampling | |
| 1-5-14, 11.11 | 7.42 | 7.87 | 5.51 | 33.3 | IPAP 30, EPAP 4 S/T mode, RR 14 FiO2 0.21 Face mask NIV |
Mask discomfort and aerophagia |
| 12-5-14, 06.11 | 7.37 | 7.48 | 9.86 | 28.1 | IPAP 30, EPAP 6 S/T mode, RR 14 FiO2 0.21 Nasal mask NIV with chinstrap |
Discharge advice to use nasal mask NIV nocte and 2×2 h/daytime |
EPAP, expiratory positive airway pressure; measured in cm H2O; IPAP, inspiratory positive airway pressure; RR, respiratory rate (breaths per minute); NIV, non-invasive ventilation; S/T, spontaneous-timed mode.