Newbie

Hello everyone. I decided to have weight loss surgery in August. So I met with a surgeon and I decide on the sleeve. My insurance company requires me to do several things prior to being approved. I finished my three month stint with the nutritionist and have my psych evaluation set for 12/6. I got annoying news, today, from the surgeons office that I need a pulmonary clearance test before they send out paperwork to the insurance company. I have that set for 12/21. I was hoping to be approved by then. But oh well. Does anyone have Federal Blue cross and blue shield that is post surgery that could give me an estimate on how long it took for approval. Any other tips are greatly appreciated.