Dr. Nidhi Raka on Instagram: "special types of hypertension (HTN): 1. White Coat HTN – BP high at clinic, normal at home. 2. Masked HTN – BP normal at clinic, high at home/work. 3. Resistant HTN – Uncontrolled despite 3+ drugs (incl. diuretic). 4. Refractory HTN – Uncontrolled despite 5+ drugs. 5. Malignant HTN – Sudden severe BP rise with organ damage; emergency. 6. Secondary HTN – Due to another disease (e.g., kidney, endocrine). 7. Isolated Systolic HTN (ISH) – Only systolic BP high; common i