ABG Nursing Quiz

The normal value for the pH is 7.40. pH is a measure of the acidity or alkalinity of a solution, with a value of 7 considered neutral. A pH value higher than 7 indicates alkalinity, while a value lower than 7 indicates acidity. Therefore, a pH of 7.40 falls within the normal range, indicating a slightly alkaline solution.

The respiratory parameter of the arterial blood gas set is pCO2 because pCO2 represents the partial pressure of carbon dioxide in the arterial blood. This parameter is important in assessing the respiratory function and acid-base balance of an individual. Changes in pCO2 levels can indicate respiratory disorders such as hypoventilation or hyperventilation.

Acidemia is a condition characterized by an abnormally low blood pH level. A pH level less than 7.35 indicates acidemia, as it indicates an excess of hydrogen ions in the blood, resulting in increased acidity. The other options, such as a pCO2 greater than 45 or HCO3- more than 26, are not indicators of acidemia but may suggest other acid-base imbalances. A pH level more than 7.45 would indicate alkalemia, which is the opposite of acidemia.