AKT-4726

AKT-4726

A 42-year-old man presents with a one-month history of tingling sensation in his fingers, toes and around the mouth. When the symptom first started, it was only affecting his fingers. It has since spread and gradually got worse. He had the same symptom a few years ago and was found to have a low calcium level. There is no reported muscle weakness, tremor or other neurological symptoms.

He is currently taking omeprazole for reflux symptoms. His recent blood test showed the following:

Calcium 2.2 mmol/L (2.1-2.6)

What electrolyte abnormality could be responsible for this patient’s presenting symptoms?