Tachycardia
Tachycardia means a heart rate faster than normal, usually over 100 beats per minute at rest. Learn the warning signs, what first aid to give, and when to call for urgent help.
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Heart Rate
Heart rate means how many times the heart beats in one minute. Learn why heart rate matters in first aid, how it relates to pulse, and when abnormal rates need urgent help.
Pulse Check
Checking a pulse means feeling for a heartbeat to learn about circulation. Learn what it can tell you in first aid and when not to let it delay urgent action.
Vital Signs
Vital signs are basic signs that show how well a person's body is working, such as breathing, pulse, alertness, and skin changes. Learn what to watch for.
Pulse
Pulse is the beat you can feel in an artery each time the heart pumps blood. Learn how to check pulse, what it can tell you, and when pulse concerns need urgent help.