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Details

ABG's
Arterial Blood Gases
20
Nursing
Undergraduate 3
11/28/2010

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Cards

Term
What causes Acidosis?
Definition
- Too much Carbonic Acid (H2CO3) or not enough bicarbonate (HCO3)
Term
What is the primary event that causes Respiratory Acidosis?
Definition
- Hypoventilation
Term
What are the 3 primary events that causes Metabolic Acidosis?
Definition
- Kidney production of lactic acid (Glucophage)
- Kidney production of Ketones
- Kidney dysfunction resulting in kidneys unable to secrete acid
Term
What is the primary event that causes Metabolic Acidosis d/t a decrease in bicarbonate (HCO3)?
Definition
- Persistent diarrhea
Term
What causes Alkalosis?
Definition
- Too much bicarbonate (HCO3) or not enough carbonic acid (H2CO3)
Term
What is the primary event that causes Respiratory Alkalosis?
Definition
- Hyperventilation
Term
What are the primary events that causes Metabolic Alkalosis?
Definition
- Hypokalemia that causes H+ to shift into the intracellular space
- Prolonged vomiting (loss of HCL from vomiting causes H+ ions to leave the intravascular space resulting in a increased ph)
Term
What is the primary event that causes Metabolic Alkalosis d/t an increase of bicarbonate (HCO3)?
Definition
- Taking in an excess baking soda, alka-seltzer
Term
How long does it take for the respiratory system to respond to a change in pH?
Definition
- minutes to hours
Term
How long does it take for the renal system to respond to a change in pH?
Definition
- hours to days
Term
The Respiratory system is primary controller of what substance in regulating pH?
Definition
- H2CO3 Carbonic Acid
Term
The Renal system is primary controller of what substance in regulating pH?
Definition
- HCO3 base
Term
What is the result of an increase in pH in the Respiratory system? ...What happens to the respiratory rate/depth?
Definition
- A decrease in respiratory rate/depth
- Result: CO2 is retained
Term
What is the result of an decrease in pH in the Respiratory system? ...What happens to the respiratory rate/depth?
Definition
- An increase in the respiratory rate/depth
- Result: Greater excretion of CO2 via lungs "CO2 is blown off"
Term
What is the result of an increase in pH in the Renal system?
Definition
- Kidneys retain H+ and HCO3 is excreted
Term
What is the result of an decrease in pH in the Renal system?
Definition
- Kidneys excrete H+ and HCO3 is formed and retained
Term
What happens to the labs in Respiratory acidosis? ...pH?....pCO2?...HCO3?
Definition
- Ph < 7.35 (Less than)
- pCO2 >45 (greater than)
- HCO3 22 - 26 (renal stays the same)
Term
What happens to the labs in Respiratory Alkalosis? ...pH?....pCO2?...HCO3?
Definition
- Ph > 7.45 (greater than)
- pCO2 < 35 (less than)
- HCO3 22 - 26 (renal stays the same)
Term
What happens to the labs in Metabolic acidosis? ...pH?....pCO2?...HCO3?
Definition
- Ph < 7.35 (Less than)
- pCO2 35 - 45 (resp. stays the same)
- HCO3 < 22 (less than)
Term
What happens to the labs in Metabolic Alkalosis? ...pH?....pCO2?...HCO3?
Definition
- pH > 7.45 (greater than)
- pCO2 35 - 45 (resp. stays the same)
- HCO3 > 26 (greater than)
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