Acidosis resident survival guide: Difference between revisions
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{{familytree | | | C03 | | | | | | | | | | | |C04|C03='''Metabolic acidosis'''|C04='''Respiratory acidosis'''}} | {{familytree | | | C03 | | | | | | | | | | | |C04|C03='''Metabolic acidosis'''|C04='''Respiratory acidosis'''}} | ||
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{{familytree | | | C05 | | | | | | | | | | | |C06|C05='''Check for respiratory compensation'''<br><br>Calculate expected PCO<sub>2</sub>|C06='''Check for renal compensation'''<br><br> Calculate expected HCO3<sup>2-</sup>] }} | {{familytree | | | C05 | | | | | | | | | | | |C06|C05='''Check for respiratory compensation'''<br><br>Calculate expected PCO<sub>2</sub>|C06='''Check for renal compensation'''<br><br> Calculate expected [HCO3<sup>2-</sup>] }} | ||
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Revision as of 01:02, 2 August 2013
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Definition
Acidosis occurs when the pH is less or equal to 7.35 due to excess of hydrogen ions.
Causes
Life Threatening Causes
Common Causes
- Diabetic ketoacidosis
- Diarrhea
- Ethylene glycol
- Lactic acidosis
- Methanol
- Renal tubular acidosis
- Salicylates
- Uremia
Management
| pH < 7.35 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Acidosis (High [H+]) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Determine the primary disorder Metabolic or respiratory? | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Check [HCO32-] and PaCO2 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Low [HCO32-] and Low PaCO2 | High [HCO32-] and High PaCO2 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Metabolic acidosis | Respiratory acidosis | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Check for respiratory compensation Calculate expected PCO2 | Check for renal compensation Calculate expected [HCO32-] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Decrease in PaCO2=1.25 x (24- measured HCO32-? | Acute acidosis? Increase [HCO32-]=0.1 x (measure PaCO2-40)? | Chronic acidosis? Increase [HCO32-]=0.1 x (measure PaCO2-40)? | |||||||||||||||||||||||||||||||||||||||||||||||||
| E01 | E02 | E03 | E04 | E05 | E06 | ||||||||||||||||||||||||||||||||||||||||||||||