Chapters 14 The irreversible stage=use of mechanical ventilation, altered consciousness, and profound acidosis. The compensation stage = decreased urinary output, confusion, and respiratory alkalosis. BP normal respirations are above 20 heart rate is above 100 but below 150 serum sodium and blood glucose levels are elevated The progressive stage =metabolic acidosis, lethargy, and rapid, shallow respirations. BP can no longer compensate the MAP falls below normal limits. Patients are clinically h...