Office, Home, and Ambulatory Blood Pressure

Inclusion Criteria: 1. Age 6 years to \<19 years old; 2. Elevated blood pressure defined as 15% lower than the 95%ile BP based on clinical practice guidelines(CPG) but less than stage II hypertension based on CPG; 3. Tolerate ABPM 24 hours; 4. Tolerate HBP; and 5. Can have diabetes mellitus, obstructive sleep apnea, and attention deficit hyperactivity disorder managed by medication. 6. On stable doses of medications known to affect BP such as: 1. Corticosteroids 2. Calcineurin inhibitors 3. Oral decongestants; 7. Clinically stable Exclusion Criteria: 1. On antihypertension medications or treated in the last 6 months; 2. Pregnant; 3. Structural heart disease such as: 1. Obstructive valvular disease 2. Coarctation of the aorta 3. Cardiomyopathy; 4. Other secondary causes such as: 1. Renal artery stenosis 2. Neurological condition with dysautonomia; 5. Recent initiation of medications known to affect BP such as: 1. Corticosteroids 2. Calcineurin inhibitors 3. Oral decongestants;