Standard of Care Questions

Hi there... I recently had acupuncture done for the first time ever, and unfortunately suffered a collapsed lung afterwards which led to multiple urgent care/doctor/ER visits, including a failed needle aspiration and a chest tube which was a horrible and traumatizing experience (probably the worst pain I've ever felt). I am now recovering, but cannot resume normal activities for the time being (lifting weights, running, climbing) and am unable to take the vacation I had planned for this week - I may also have to cancel another vacation later this month as it's unclear if I will be medically okay to fly at that time or not. I think I will have long term anxiety about the collapse happening again. /rant over

My doctors and I believe the collapse was due to the acupuncture. I am considering whether or not to explore any legal action, and want to better understand the standard of care I received. I did let my practitioner know about the lung collapse and she (understandably) did not admit fault. So I have some questions and if anyone is able to answer the below, it would be so helpful! Also, if there are any questions I should be asking that I am not, I would love to know.

1. Which acupuncture points pose a risk, to your knowledge, of causing a collapsed lung? Is there any particular point you would consider a risk to causing a collapse of the top of the right lung?

2. What precautions, if any, do you take when needling the above points? How long do you leave the needles in? What factors do you consider when deciding to needle them or not?

3. What precautions, if any, do you take with first time ever or new patients? Do you ask if new patients have had acupuncture before? What do you do differently with first time patients vs established?