
Stroke survivors or their caregivers need to think about the following life-saving preparations.
Wear a medical ID.
First responders and medical personnel are trained to first look for medical identification jewelry in an emergency. Medical IDs will immediately alert emergency medical professionals to your critical health and personal information.
People with afib and people on blood thinners should especially consider wearing a medical ID.

Adding ICE ("In case of emergency") to your phone is a means by which emergency personnel can locate your next of kin when something goes wrong. (Here's a simple tutorial.) Also see How To Set Up Your Medical ID & ICE Contact On The iPhone.
Keep a medical ID card in your wallet.

- all current medicine you are taking
- notification of any chronic medical conditions
- in case of emergency contact
- allergies
You can print it out yourself, here.