Okay that’s good news. When I had the emergency test after takedown my potassium was alarmingly low. I was in Mount Sinai Hospital and a nurse rushed into my room and with a note of urgency in her voice, said I had to drink the liquid potassium right away. She had a Dixie cup filled with it. I tried to sip it at first due to the foul taste, and she admonished me in a stern voice to drink it all immediately which I did. I later learned that they don’t like to IV liquid potassium because it’s too shocking to the system and can cause cardiac arrest.
As to the cause of your potassium deficiency, assuming you are properly hydrating with electrolyte beverages, you should speak to someone after getting your results. In the months after takedown, I had wild fluctuations in my potassium and sodium levels which aren’t unusual. If you are 3 years removed from takedown your Pouch should have assumed most electrolyte absorption functions of the colon, although it’s not a perfect replacement. Going forward you may need to eat more potassium laden foods like bananas etc. Good luck.