<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been feeling weak and fatigued lately, and my muscles are cramping a lot. Additionally, I am experiencing some heart palpitations. Could this be related to my increased potassium levels?  <response>: Yes, its possible. To confirm the diagnosis of hyperkalemia and determine the severity of your condition, well need to run some tests. These include hematologic tests, a complete blood count, an electrocardiogram, and an electrolyte panel. Well also need to check your kidney function with a kidney function test and possibly some radiographic imaging to look for any underlying causes. Depending on the severity of your hyperkalemia, we may need to start intravenous fluid replacement. 