Paco2 normal range

Interpreting an arterial blood gas ABG is a crucial skill for physicians, nurses, respiratory therapists, and other health care personnel. ABG interpretation is especially important in critically ill patients.

Hco3 normal range

The following six-step process helps ensure a complete interpretation of every ABG. In addition, you will find tables that list commonly encountered acid-base disorders. Many methods exist to guide the interpretation of the ABG. A summary of these techniques can be found in some of the suggested articles. Step 1: Assess the internal consistency of the values using the Henderseon-Hasselbach equation:.

Step 3: Is the disturbance respiratory or metabolic?

Arterial blood gas normal values

What is the relationship between the direction of change in the pH and the direction of change in the PaCO 2? In primary respiratory disorders, the pH and PaCO2 change in opposite directions; in metabolic disorders the pH and PaCO 2 change in the same direction. Step 4: Is there appropriate compensation for the primary disturbance?

Usually, compensation does not return the pH to normal 7. If the observed compensation is not the expected compensation, it is likely that more than one acid-base disorder is present. Step 6: If an increased anion gap is present, assess the relationship between the increase in the anion gap and the decrease in [HCO 3 -].

This ratio should be between 1.