Welcome to Acid Base Cases on Pedscases.com. There are five cases with accompanying questions. The cases and questions are designed to help you practice your systematic step-by-step approach to the interpretation of a blood gas and acid-base abnormalities. If needed, refer back to the podcast or video for more information and explanations. These case questions were written by Katie Girgulis, a medical student at the University of Alberta, with the help of Dr. Karen Forbes, a pediatrician and medical educator at the Stollery Children’s Hospital and the University of Alberta.