A 38-year-old male with multiple enterocutaneous fistulae an…
A 38-year-old male with multiple enterocutaneous fistulae and chronic malnutrition on total parenteral nutrition (TPN) is admitted to the ICU with lethargy and hypotension. His medical history is significant for Crohn disease requiring multiple bowel surgeries. Soon after arrival in the ICU, he starts seizing and exhibits tetany. Which of the following electrolyte abnormalities is MOST consistent with this presentation?