The document discusses several key components measured in a blood gas test: - PaO2 measures oxygen dissolved in plasma and should be 80-100 mmHg. SaO2 measures oxygen bound to hemoglobin and should be around 97%. Together they assess oxygenation status. - pH measures hydrogen ion concentration in plasma and should be 7.40; below 7.35 is acidosis and above 7.45 is alkalosis. - PaCO2 measures carbon dioxide dissolved in plasma and should be 35-45 mmHg; below 35 is respiratory alkalosis and above 45 is respiratory acidosis. - HCO3- measures bicarbonate and reflects kidney function; the normal range is 22-26