Figure 1.
Sequence of PtcCO2 measurements, inhalation maneuvers and spirometry.
PRE = transcutaneous blood carbon dioxide partial pressures (PtcCO2) prior to methacholine bronchial challenge test (MCT), 1MIN = PtcCO2 one minute after termination of MCT, 5MIN = PtcCO2 five minutes after termination of MCT.
Table 1.
Median values of transcutaneous carbon dioxide partial pressures (PtcCO2) during the course of bronchial challenge testing with methacholine.
Table 2.
Comparison of median transcutaneous carbon dioxide partial pressures (PtcCO2) according to asthma definition during the course of bronchial challenge testing with methacholine.
Table 3.
Comparison of median values of change of transcutaneous carbon dioxide partial pressures (PtcCO2) according to asthma definition during testing and during recovery after methacholine provocation testing.