I will give you an easy example. Drs seem to know about G6Pd deficiency. You get tested for it if you are going to get a prescription for Plaquenil. This is probably why Drs are familiar with it.
But what if your g6pd is elevated. They dont have a clue
Don’t ask doctors. More than likely you will not get satisfactory answers. Many are clueless. A lot of them are in it just for the money and know the bare minimum to get by.
As for your question I looked up g6pd. Deficiency means premature destruction of RBC’s causing anemia. So common sense would suggest elevated g6pd would cause your RBC’s to hang around for too long, or a build up of RBC’s. Neither is good. You need just the right amount.
A Google search showed “it invariably reflects the presence of a young red blood cell population with reticulocytosis.” In other words accumulation of young/immature RBC’s. Does that increase your chances of Leukemia ? Your best bet is to Google and read research papers on the topic or post on specialized forums where sometimes true experts or researchers will answer your question anonymously.