I had one and because I was so nervous they gave me lots of tranquilliser. Valium I believe. Anyway although I didn't have an anaesthetic I can't remember a thing about it. I could have watched them doing it on a TV screen though. Your friend can ask for a sedative - you do get a choice. I just couldn't stand the thought of a tube being pushed down my throat and into my lungs. There is a bit of bleeding afterwards so expect to cough up a bit of blood for a day ort wo, but nothing dreadful. I was as right as rain afterwards. Mine was obviously a different type of lung biopsy than daffy's.