Respiratory Therapy - A-a Gradient, a/A ratio, how they apply and why it matters?

Understanding that arterial oxygenation depends on the efficacy of the alveoli explains alot. Why does A-a gradient increase when breathing 100% oxygen? Is this a bad thing? Let me know what you think at the conclusion of the video! Thanks for watching!!! Don't forget to email me to find out how to get a shirt! respiratorycoach@gmail.com Please subscribe, like and comment. Would love to hear what you think about the video. Also look for me on social media.... TIK TOK @respiratorycoach IG @respiratorycoach Twitter @coachrrt Feel free to email me any questions or concerns @ respiratorycoach@gmail.com. BEST WISHES!!!