A patient with mixed emotions of euphoria and anxiety, along with impulsive spending, is likely experiencing?

The presence of mixed emotions such as euphoria and anxiety, combined with impulsive behaviors like spending, is characteristic of Bipolar Disorder, particularly during a manic or hypomanic episode. In this state, individuals often experience elevated moods or extreme irritability, which can lead to impulsive decision-making and behaviors that they might not typically engage in, such as excessive spending.

Bipolar Disorder involves cycles of mood changes ranging from depressive lows to manic highs, making the combination of these emotional states and behaviors highly indicative of the disorder. The impulsivity seen in such patients can lead to various negative consequences, reflecting the unstable self-image and judgment that can accompany manic phases.

Other disorders listed do not align as closely with the described symptoms. Major Depressive Disorder primarily involves persistent feelings of sadness and lack of interest, not euphoria. Post-Traumatic Stress Disorder is associated with anxiety and re-experiencing trauma, not euphoria or impulsivity. Panic Disorder is defined by recurrent panic attacks and significant anxiety, but it does not typically include the elevated mood aspect present in this scenario. Therefore, the overall symptom profile aligns most closely with Bipolar Disorder.