A73 year old female was in her backyard gardening when she collapsed to the ground. her husband told 911 that "she is breathing very fast and will not talk to me." you arrive to find the woman lying on her side in the grass. she is breathing at 7 breaths per minute and her pulse is irregular and very thready. her lungs also present with crackles upon auscultation as you are taking a blood pressure (88/66) the husband tells you that the woman has been having jaw pain and some weakness for approximately 3 days. what is the most likely cause of this woman's condition and how would you treat her?