This Patient Guide serves as a resource for people who aren’t sure whether or not their symptoms – or the symptoms of a loved one – require contacting a doctor. As a general rule, a physician should always be contacted immediately if a person's health is in question. This is particularly important for people who have heart conditions or respiratory problems.

It is vital that individuals recognize signs or symptoms that indicate the need for emergency medical help. In addition, individuals should be aware of signs or symptoms that signal the need for evaluation by a physician.