Acid Base Balance

What is an Arterial Blood Gas (ABG)

To evaluate acid base balance
What maintains acid-base balance
- Chemical
- Respiratory
- Renal
Chemical and protein Buffers
- 1st line of defense
- Binds or release H+ as needed
- Responds quickly to change in pH
Respiratory buffers
- 2nd line of defense
- Controls H+ ans CO2
Renal buffers
- Kidneys are the 3rd line of defense
- Slower to respond
- Kidney control HCO3 in the urine
Hyperventilation

decrease in H+
Hypoventilation

Increase in H+
Full compensation

normal pH
Partial compensation

pH is not normalized
Anhydrase formula

H₂0 + CO₂=H₂CO₃=H⁺ +HCO₃
Metabolic acidosis
Metaolic alkalosis
Respiratory acidosis
Respiratory alkalosis

Author

blkbunny20

51731

Card Set

Acid Base Balance

Description

medical surgical

Updated

2010-11-26T12:29:48Z

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