Which statement by a patient could contribute to a tachyarrhythmia if they experience a heart rate of 120 to 135 beats per minute?

The statement about feeling anxious due to losing a job is significant because anxiety can lead to an increased heart rate, commonly known as tachycardia. When a person experiences heightened anxiety or stress, this triggers the body's fight-or-flight response, releasing stress hormones like adrenaline. These hormones can stimulate the heart to beat faster, which may contribute to a tachyarrhythmia characterized by a heart rate of 120 to 135 beats per minute.

In contrast, beginning a new exercise program, eating healthier, or sleeping well are generally associated with positive effects on heart health and typically do not contribute to an increased heart rate in a detrimental manner. Exercise can initially increase heart rate, but it's usually a controlled response rather than a pathological one unless there are underlying conditions. Similarly, healthier eating habits and good sleep hygiene would not contribute to tachyarrhythmias but rather support overall cardiovascular health.