In adults with untreated office BPs that are consistently between 120 mm Hg and 129 mm Hg for SBP or between 75 mm Hg and 79 mm Hg for DBP, screening for masked hypertension with HBPM (or ABPM) is 8,S4.4-11). IIb C-LD 5. In adults on multiple-drug therapies for hypertension and office BPs within 10 mm Hg above goal, it may be reasonable to screen for white coat effect with HBPM (or ABPM) (S4.4-3,S4.4-7,S4.4-12). IIb C-EO 6. It may be reasonable to screen for masked uncontrolled hypertension with HBPM in adults being treated for hypertension and office readings at goal, in the presence of target organ damage or increased overall CVD risk. IIb C-EO 7. In adults being treated for hypertension with elevated HBPM readings suggestive of masked uncontrolled hypertension, confirmation of the diagnosis by ABPM might be reasonable before intensification of antihypertensive drug treatment. Synopsis The availability of noninvasive BP monitoring techniques has resulted in differentiation of hypertension into several clinically useful categories that are based on the place of BP measurement (Table 12).S4.4-1,S4.4-13,S4.4-14 These include masked hypertension and white coat hypertension, in addition to sus- tained hypertension. White coat hypertension is characterized by elevated office BP but normal readings when measured outside the office with either ABPM or HBPM. In contrast, masked hypertension is characterized by office readings sug- gesting normal BP but out-of-office (ABPM/HBPM) read- ings that are consistently above normal.S4.4-15 In sustained hypertension, BP readings are elevated in both office and out- of-office settings. 