Final answer:
Tachycardia, or a rapid heart rate, is not normal in a resting patient but may be detected in pregnant women or individuals experiencing extreme stress. Some individuals may remain asymptomatic, but when present, symptoms may include dizziness, shortness of breath, rapid pulse, chest pain, or fainting. Treatment depends upon the underlying cause.
Step-by-step explanation:
Tachycardia, or a rapid heart rate, is not normal in a resting patient but may be detected in pregnant women or individuals experiencing extreme stress. Some individuals may remain asymptomatic, but when present, symptoms may include dizziness, shortness of breath, rapid pulse, chest pain, or fainting. While tachycardia is defined as a heart rate above 100 beats per minute (bpm), there is considerable variation among people and resting heart rates of children can often be above 100 bpm without being considered tachycardia. Treatment depends upon the underlying cause and may include medications, implantable cardioverter defibrillators, ablation, or surgery.