• Essential hypertension
• "White-coat" hypertension
• Cuff too small

Secondary hypertension

• Adrenal

1. Primary hyperaldosteronism
2. Cushing's syndrome (or steroid therapy)
3. Pheochromocytoma

• Renal

1. Chronic renal disease
2. Renal artery stenosis (atherosclerotic or fibromuscular dysplasia)
3. Polyarteritis nodosa

• Other

1. Oral contraceptives
2. Alcohol
3. NSAIDs
4. Pregnancy-associated
5. Hypercalcemia
6. Hyperthyroidism
7. Obstructive sleep apnea
8. Obesity
9. Coarctation of the aorta
10. Acromegaly
11. Increased intracranial pressure

• Wide pulse pressure
• Proteinuria
• Renal failure
• Hematuria