Hello, i'm a graduating nursing student here in the philippines, actually nursing is my second course. My first course was Respiratory Therapy, and back then we do ABG's. I remember when i was still a student, we used to practice ABG with our classmate. It stings a little bit, but its bearable. Anyway, it helps when you explain to the patient the procedure, helps calm them.... Nothing beats the feeling when you hit the artery on the first try. ................well happy hitting!!!!!!