University:
American Career College
Course:
NURS112 | Fundamentals of Nursing
Academic year:

2019
Views:

399

Pages:

1
Author:

Shyanne Johnson

COMPENSATED VERSUS UNCOMPENSATED ABG If you identify that it will be compensated in some way (your pH is normal). To determine if it is metabolic or respiratory you want to look at the HC03 and PaC02 and see which is more aligned with the pH. See below. If your pH is abnormal and so are both your C02 and HC03, you know some compensation has occurred. If your pH is normal and both your Co2 and HC03 are abnormal, you know full compensation has occurred. If the HC03 (Metabolic) is elevated (above 26) it is more alkaline. If the PaC02 (Respiratory) is elevated (above 45) it is more acidic. Whichever matches with your pH is what system is responsible for the imbalance. EXAMPLES TO PRACTICE: pH 7.29, PaCO2: 29, HC03: 18 = Metabolic acidosis with partial respiratory compensation (metabolic because both the HC03 and the ph are acidic). pH: 7.50, PaC02: 30, HC03: 20 = Respiratory Alkalosis with partial metabolic compensation (Respiratory because both the PaC02 and the pH are acidic) pH: 7.43, PaC02: 54, HC03: 32 = Metabolic alkalosis with full respiratory compensation (Metabolic because the pH- although normal is more on the alkalotic side 7.43 (like we talked about in class today, N-alkalosis). The pH matches with the HC03 in that they are both more alkalotic. Fully compensated – means the two systems were able to regulate (or see saw) back to a normal balanced pH. pH: 7.37, PaC02: 58, HC03: 34 = Respiratory acidosis with full metabolic compensation (Respiratory because both the pH and the PaC02 are on the acidotic side), fully compensated by the metabolic (kidneys) system because the pH is normal.