The following are sets of arterial blood acid-base data obta…

The following are sets of arterial blood acid-base data obtained from several hospital patients.  Normal HCO3- is 24 mEq/L. Normal PCO2 is 40 mmHg. All patients have a normal plasma Na+ concentration.   Patient               pH                               HCO3- mEq/L                   PCO2 mmHg                      A                          6.85                                        10                                       60                                   B                          7.53                                        36                                       48                                    C                          7.80                                        15                                       10                                     D                          7.32                                        15                                       30             Which patient got diarrhea ?