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When to call 911
Call 911 immediately if you have any of these signs or symptoms:
- discomfort or pain in your upper body or chest (such as pressure, squeezing, or tightness) lasting more than a few minutes and that does not go away five minutes after taking one nitroglycerin tablet or one nitroglycerin spray.
- discomfort or pain that moves to your shoulders, neck, arms, jaw, teeth or back
- sudden weakness and/or unusual tiredness, dizziness, sweating, nausea or shortness of breath
- fainting ("passing out") or blacking out
- extreme shortness of breath
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Source: Allina Patient Education, Helping Your Heart, fourth edition, cvs-ahc-90648
First published: 10/04/2002
Last updated: 06/01/2007
Reviewed by: Allina Patient Education experts