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Understanding Acid-Base Homeostasis: The Roles of Lungs and Kidneys

This guide provides an overview of acid-base homeostasis, focusing on the roles of the lungs and kidneys in maintaining the balance. It explains the familiar equation that serves as a basis for understanding conditions that affect pH, including normal arterial blood gases (ABGs). Learn about the differences between respiratory and metabolic disturbances, including metabolic acidosis, metabolic alkalosis, respiratory acidosis, and respiratory alkalosis. Understand the significance of key parameters such as pH, PaCO2, HCO3-, PaO2, and oxygen saturation.

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Understanding Acid-Base Homeostasis: The Roles of Lungs and Kidneys

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Presentation Transcript

  1. Acid/Base Homeostasis

  2. The Very Familiar Equation

  3. Lungs vs. Kidneys

  4. Respiratory or Metabolic? • If the lungs are the cause, it is called: • If any other condition is the cause, it is called:

  5. Normal ABGs • pH = • PaCO2 = • HCO3- • PaO2 = • Oxygen saturation of Hgb =

  6. Who Has ABGs done often?

  7. The 4 Conditions • Metabolic alkalosis • Metabolic acidosis • Respiratory acidosis • Respiratory alkalosis

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