Methaemoglobinemia Induced by MDMA?

Table 2

Blood gas analysis over the time.

Time	0	10 min later	1 hour later	1.5 hour later
O2 delivery	12 L O2	15L O2	15L O2	10L O2
Ph	7.38	7.39	7.39	7.41
PCO2 (mmHg)	44	44	43	43
HCO3 (mmol/L)	25.1	25.9	25.7	26.4
PO2 (mmHg)	200	240	250	300
Saturation (%)	ntb	97	97	98
Carboxyhaemoglobin (%)		0.20	−0.10	−0.10
Methaemoglobin (%)		32	23	16