Acid-Base program.doc - FUN WITH ACID/BASE BALANCE The Building Blocks Everyone cringes when someone mentions acid/base balance The eyes become vacant

Acid-Base program.doc - FUN WITH ACID/BASE BALANCE The...

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FUN WITH ACID/BASE BALANCE The Building Blocks Everyone cringes when someone mentions acid/base balance. The eyes become vacant and everyone avoids eye contact trying to draw attention away from themselves. Well, we are going to explore it again and, this time, we will give you the tools to remember how it works. We are only going to address the basic concepts here – compensation will be another adventure! Ok, let’s identify the players here. Acid is CO2 and base is HCO3 . Then there are a few values that MUST be memorized. Normal pediatric serum pH = 7.35-7.45 Blood pH is defined as the acid-base relationship. The regulation of this blood pH is maintained through the interaction of the blood buffers, the kidneys, and the lungs. pH < 7.35 = acidosis (net loss of HCO3 or gain of CO2) pH > 7.45 = alkalosis (net gain of HCO3 or loss of CO2) Normal pediatric serum HCO3 = 22-26 mEq/L Normal pediatric PaCO2 = 35-45 mmHg Normal oxygen value ≥ 70 (on room air) When determining whether the disturbance in the acid-base balance is respiratory or metabolic in origin, we need to look at the pH first. Remember that a blood pH:
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<7.35 = acidosis >7.45 = alkalosis Let’s practice a bit (check the appropriate column). pH ACIDOSIS ALKALOSIS NORMAL 1. 7.25 2. 7.48 3. 7.37 4. 7.31 5.
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  • Spring '14
  • BrendaA.Pavill

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