What is the importance of standardized BP measurement when applying this guideline?
The importance of standardized BP measurement when applying this guideline cannot be overemphasized. Routine, non-standardized of ce BP measurements often, but not invariably, overestimate BP compared to measurements under standardized conditions (Chapter 1). Importantly, the extent to which routine measurements overestimate or underestimate standardized of ce BP is highly variable between and within patients; therefore, no correction factor can be used to convert routine BP to standardized BP measurement by calculation. The use of routine measurements to adjust BP-lowering therapy confers a serious risk of overtreatment and sometimes undertreatment. It should be emphasized that the most important aspect of standardized BP measurement is preparation prior to the measurement and not the equipment used (Chapter 1).