What vital sign may indicate severe anxiety in a patient?

In the context of severe anxiety, tachycardia, or an increased heart rate, is a common physiological response. When a person experiences high levels of anxiety, the body's fight-or-flight response is activated, leading to the release of stress hormones such as adrenaline. This response can cause the heart to beat faster as part of the body's preparation to respond to perceived threats, which is why tachycardia can be a vital sign indicative of severe anxiety.

Understanding the physiological manifestations of anxiety helps in assessing and managing such conditions effectively. Monitoring vital signs can provide critical insights into a patient’s emotional state, and recognizing tachycardia in conjunction with other symptoms may guide healthcare providers in formulating appropriate interventions or offering reassurance to the patient.