Independent patient education. Not medical advice or a substitute for professional care.

Emergency? Call 911 in the U.S. or your local emergency number.

Safety first

This website cannot provide urgent medical care.

If you believe you or someone else is experiencing a medical emergency, call emergency services now.

In the United States, call 911.

Outside the United States, use your local emergency number. Do not wait for an email response from this website.

For an urgent but non-emergency concern

Use the instructions provided by your healthcare team, on-call clinician, local urgent-care service, or other qualified provider. If you are unsure whether a situation is an emergency, seek immediate professional help.