### Patient: 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? 
### Doctor: Yes, it's possible. To confirm the diagnosis of hyperkalemia and determine the severity of your condition, we'll need to run some tests. These include hematologic tests, a complete blood count, an electrocardiogram, and an electrolyte panel. We'll 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.