Preparing for Emergencies

What is an emergency profile? What are its benefits?
How do I create an emergency profile?
How do I view and update an existing emergency profile?
How does the wallet card work?
Does an emergency responder need to have access to my HealthVault account to see my emergency profile online?
What is the emergency access code? How is it created and used?
How do I share an emergency profile with someone?
Is sharing an emergency profile the same as sharing a record?
How do I cancel an emergency access code?