The hypertension five test is a systematic monitoring of blood drawn through a vein. The hypertension five tests are divided into renin, aldosterone, cortisol, adrenocorticotropic hormone, angiotensin I and II. Blood samples are taken at different times for the test, 5:00 a.m., 7-9:00 a.m., and 3-4:00 p.m. Blood is drawn for the hypertension test, and the time and precautions for the test should be strictly followed. High blood pressure can cause many complications, such as hyperglycemia, hyperlipidemia, and heart disease. It is important to take antihypertensive medication on time and improve your lifestyle habits to stabilize your condition, and to maintain a positive and optimistic mood.