<prompt> ABG analysis of a patient on ventilator, shows decreased pCO2, normal pO2, pH 7.5, diagnosis is -Resp. acidosisMetabolic alkalosisResp. alkalosisMetabolic acidosis  <response>: First stepDetermine whether academia or alkalemia is present by observing the pH.pH is increased, indicating alkalosisSecond stepInspect HCO3- CO2 to determine the cause of academia or alkalemiapCO2 is decreased indicating respiratory alkalosis. 