Final answer:
Enzyme studies for confirming G6PD deficiency can be performed at any time, including before, during, or after a hemolytic episode.
Step-by-step explanation:
The diagnosis of G6PD deficiency is typically confirmed via enzyme studies. These studies can be performed at any time and can help determine the presence of G6PD deficiency, which is a hereditary disease characterized by abnormally low levels of the glucose-6-phosphate dehydrogenase enzyme. Enzyme studies are usually done before, during, or after a hemolytic episode to assess the activity of the G6PD enzyme and confirm the diagnosis.