The Hip: Preservation, Replacement and Revision

Metabolic Alkalosis


See ABG 
- Definition: primary increase HCO3. 
- Must distinguish: Compensatory HCO3 incr vs. Primary Resp Acid 
- the Resp response to Met. Alk may vary: pCO2 incr approx 0.6 : 1 HCO3. HCO3: 24 26 28 30 32 34 36 38 40 pCO2: 40.0 41.2 42.4 43.6 44.8 46.0 47.2 48.4 49.6 

* if pCO2 = approx predicted value, then Respiratory Compensation. 
* if pCO2 > predicted, then concomitant Resp Acidosis. 
* if pCO2 < predicted, then concomitant Resp Alkalosis - Met Alk results in Decr Respiration (incr pCO2) as compensation - Note: Hypoxia will incr Respiration, hence... - may have Tetany esp. w/ hypoCa & may have hypoK 
- may have: weakness, QT widening, U waves



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Tuesday, September 4, 2012 12:10 pm