What is the most common symptom Mrs. Jacobson shows when experiencing withdrawal delirium?

Withdrawal delirium, often seen in the context of alcohol or sedative withdrawal, can manifest a variety of symptoms due to the brain's hyperactivity when it no longer receives certain substances. Among these symptoms, a rapid pulse is particularly indicative of the body's stress response during withdrawal.

The sympathetic nervous system is activated during withdrawal, leading to physiological changes that can include an increased heart rate. This rapid pulse is a crucial sign, as it reflects the body's heightened state of arousal and distress.

While hypertension and delusions can also be present in withdrawal delirium, the rapid pulse is a more direct indicator of the autonomic instability associated with this state. Euphoria, on the other hand, is more associated with substance use rather than withdrawal. Given the context, highlighting rapid pulse as a symptom is consistent with the typical physiological responses observed in patients undergoing withdrawal delirium.