What is a symptom associated with tachycardia?

Tachycardia refers to a condition where the heart rate is elevated, typically defined as a heart rate exceeding 100 beats per minute in adults. One of the common symptoms associated with this condition is palpitations. Palpitations are the sensation of feeling the heart beating rapidly or irregularly and can often feel like a fluttering, pounding, or racing heartbeat.

This symptom occurs because the heart is working harder and beating more quickly, which can be perceived by the individual as an awareness of their heartbeat. Palpitations may be particularly distressing for patients and could be caused by various factors such as stress, anxiety, caffeine, or underlying cardiovascular issues.

Other options provided do not fully capture the direct symptomatology typically reported by patients experiencing tachycardia. For instance, skipped heartbeats could occur but are not a universal symptom of tachycardia, nor does a shortened PR interval, which pertains to specific conduction characteristics on an electrocardiogram, adequately describe common subjective experiences. Decreased fatigue also does not correlate with tachycardia; in fact, patients with an elevated heart rate often experience more fatigue due to increased energy expenditure and potential underlying health issues.

Thus, palpitations distinctly characterize the sensation many