The rules and requirements are few and are rather simple by nature. Before using the blood pressure cuff and stethoscope set, you must check all the components and attachments and make sure that the manometer does not need any calibration; always calibrate if necessary. Up to 15-30 minutes before taking a test, avoid consuming caffeine do not take a bath or a shower, and do not engage in any intense, physical activity. As you get ready for the test, try to relax, and then sit motionless and silent as the test runs.