ALGA (Read Joy ARTERIAL GAS) is an application designed to facilitate learning and application of the interpretation of arterial blood gases (and soon also venous). Evaluates processes oxygenation, ventilation, acid-base status and future updates the perfusion, diagnostic generating each of these from the data entered by the user. ALGA emerged as an initiative of the National University of Colombia and the National University Hospital of Colombia to improve educational processes medical students, interns and residents specialties.