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Acid Base Balance Ch
Mechanisms - Patho
| Term | Definition | Effects |
|---|---|---|
| Respiratory | lung regulate arterial carbon oxide (CO2) | Decrease pH = increase respiratory rate Increase in pH = decreases in respiratory rate |
| Kidneys | modify the excretion rate of acids and absorption of bicarbonate ions to regulate pH. | -Most significant control mechanism -Slowest mechanism > 6 hours sustained acidosis or alkalosis |
| Bicarbonate Carbonic Acid buffer system | Composed of bicarbonate (HCO3) and carbonic acid (H2CO3) -Major ECF buffer -Immediate response | |
| Buffer System or Pairs | bicarbonate, phosphate, protein | bind or react with acids or bases to minimize pH changes IMMEDIATELY |