Hypertension- Chronic elevation in bp (blood pressure). 140/90 mmHg Cause is unknown in 80-95%. Isolated systolic hypertension (only systolic bp increases) is most common in elderly patients, due to reduced vascular compliance (compliance is the ability of blood vessels to expand and contract passively) in old age. ◾Secondary hypertension Renal artery stenosis (stenosis means narrowing)- […]