A nurse is assessing a client in labor who has had epidural anesthesia for pain relief. Which of the following findings should the nurse identify as a complication from the epidural block?

A. Vomiting: Vomiting can occur during labor due to hormonal changes, pain, or anxiety, but it is not a direct complication of an epidural block. It may also happen as a side effect of other medications, but it is not typically associated with epidural anesthesia itself. B. Tachycardia: Tachycardia may occur as a physiological response to pain or anxiety, or in cases of hypovolemia or infection. However, it is not a common or primary complication of epidural anesthesia and may instead be secondary to other clinical changes. C. Respiratory depression: Respiratory depression is more often associated with systemic opioid administration rather than epidural anesthesia, which typically does not reach the respiratory centers unless dosed excessively high or administered intrathecally in error. D. Hypotension: Hypotension is the most common complication of epidural anesthesia. It results from sympathetic blockade, which causes vasodilation and decreased venous return, reducing cardiac output. This can impair uteroplacental perfusion and requires prompt management.