Once diagnosed as hypertension, and then diagnose the reason behind the cause of hypertension.
Blood test for hypertension
- Creatinine (renal function) - is to identify both underlying renal disease as a cause of hypertension and conversely high blood pressure causing the onset of kidney damage.
- Electrolytes (sodium, potassium)
- Glucose - to identify diabetes mellitus
- Cholesterol
- Heart tracing (an electrocardiogram, also called an ECG).
Purpose of hypertension blood tests
- Diagnose or rule out a secondary cause of high blood pressure such as kidney disease.
- Check whether the high blood pressure has affected the heart.
- Check risk factors such as a high-cholesterol level or high blood-glucose level (diabetes).