Hi, I am also an EMT and just wanted to add some random thoughts.
If you buy a "medic-alert" bracelet, try to avoid the ones that look like fancy jewelry, those may be passed off as jewelry and not noticed until later or not at all.
In a serious emergency, a necklace or wrist bracelet will be noticed well before an ankle bracelet.
If you have other health problems, consider subscribing with a company that will provide you with a bracelet/necklace that has their "800" number on it with a patient ID number, with no specific medical information. In an emergency the medical staff calls the 800 number and they provide a detailed medical history, your medications, insurance information, doctor's names, and emergency contact information. Aside from the obvious advantages here, the information can be continuously updated by you, so the information is always current and you don't have to keep buying new tags when your conditions change. The mere presence of a tag will prompt an experienced medical professional to check a wallet for more information.