<prompt> Resistant hypertension is defined as?Resistance to 3 or more anti hypertension drugsResistance to 3 or more anti-hypertensive drugs including thiazidesResistance to aldosteroneResistance of Angiotension II receptors  <response>: Ans. b Resistance to 3 or more anti-hypertensive drugs including thiazidesRef: Harrison 18th edition, chapter 247 Resistant hypertension refers to patients with blood pressures persistently 14090 mmHg despite taking three or more antihypertensive agents, including a diuretic, in a reasonable combination and at full doses. Resistant or difficult-to-control hypertension is more common in patients 60 years than in younger patients. Resistant hypertension may be related to: Pseudoresistance high office blood pressures and lower home blood pressures, nonadherence to therapy Identifiable causes of hypertension including obesity and excessive alcohol intake Use of any of a number of nonprescription and prescription drugs 