I have yet to find a better arterial blood gas interpretation review article than the 1991 Western Journal of Medicine summary by Dr. Rick Haber.
This installment of the Paucis Verbis (In a Few Words) e-card series reviews ABG Interpretation. The recent addition of an ABG machine in our ED has made a tremendous difference in our ability to care for undifferentiated patients. This is a refresher in making heads and tails of mixed acid-base disorders.
Adapted from 
Go to ALiEM (PV) Cards for more resources.
- Haber R. A practical approach to acid-base disorders. West J Med. 1991;155(2):146-151. [PubMed]