Final answer:
Tachycardia can lead to symptoms of angina due to inadequate oxygen supply to the heart muscle.
Step-by-step explanation:
Tachycardia is a condition characterized by a rapid heart rate. It is not normal in a resting patient but may occur in pregnant women or individuals experiencing extreme stress. One of the symptoms of tachycardia is angina, which is chest pain or pressure caused by reduced blood flow to the heart muscle due to inadequate oxygen supply. Angina occurs because the rapid heart rate associated with tachycardia increases the demand for oxygen by the heart muscle, but the blood supply may not be able to meet this increased demand.