Table 2.

Blood gases, electrolytes

Laboratory analysis
Serum markers	Admission	Deterioration	Normal range
pH	7.38	7.11	7.35–7.45
PaCO2	5.6	5.3	4.6–6.4
PaO2	4.5	4.1	2.3–5.5
Sodium	136	132	136–145
Potassium	4.6	4.1	3.4–4.5
Chloride	104	105	98–107
Calcium	1.2	1.4	1.15–1.27
Glucose	6.8	5	3.5–7.7
Lactate	2.3	3.7	0.5–1.3
Bicarbonate	24.8	12.7	22–26
Phosphate	0.98	0.72	0.81–1.45

PaCO₂, partial pressure of carbon dioxide; PaO₂, partial pressure of oxygen.