Control of Acid-Base Balance

Introduction

Defending Against Excess Acid

1. Body Buffers

2. Renal Control

Urinary buffers

Disturbances in Acid-Base Balance

Disorder

Primary Event

Effect on [H+]

Compensation

Metabolic Acidosis

ß HCO3-

Ý (ß pH)

ß pCO2

Metabolic Alkalosis

Ý HCO3-

ß (Ý pH)

Ý pCO2

Respiratory Acidosis

Ý pCO2

Ý (ß pH)

Ý HCO3-

Respiratory Alkalosis

ß pCO2

ß (Ý pH)

ß HCO3-