the 41-year-old woman was getting ready for a party to celebrate the new year when she started to wheeze .
worried her asthma would get worse and ruin the festivities , she reached into her bag for her inhaler , according to doctors writing in the journal bmj case reports .
her blue salbutamol inhaler was uncapped in her bag , and she heard a ` coarse rattle ' when she arrived , doctors ordered a chest x-ray , and saw something was wrong straight away .