1 Unaudited Financial Results for the Quarter ended 31st March, 2015 along with Limited Review Report. 2  Date: 14th May, 2015.
The ABG values one would see with respiratory alkalosis would be: pH > 7.45; PaCO2 < 35 mm Hg; and HCO3 < 22 mEq/L if compensating. In acute respiratory alkalosis the compensation is to lower the serum HCO3 by 2 mEq/L for every 10 mmHg reduction in PaCO2.
An arterial blood gas (ABG) measures three components: pH, pCO2, pO2. All the other numbers on a blood gas are calculated. The bicarbonate (HCO3) value is calculated based on the measured pH and the measured pCO2, using the Henderson-Hasselbalch equation. The base excess (BE) is calculated using a similar equation.BG-A is a normal blood gas in room air. ABG-B (pH 7.20, pCO2 60, pO2 70, bicarb 24, BE -3) shows a patient with acute respiratory failure. The pH is less than 7.40 which means that the patient has an acidosis.