Hello.To establish the diagnosis of high blood pressure
is necessary several measurements on different days at rest; but in this case the patient's age and as high figures is not necessary more measurements.The doctor must request additional tests(Analytical blood, urine analytical
and electrocardiogram).Is possible that their high figures blood pressure for years
and exist renal or cardiac pathologies secondary high blood pressure.
After additional test must be established a treatment:Changes in lifestyle habits (exercise, diet without salt)and drugs for high blood pressure.
Periodically your blood pressure should be monitored, he can do that at home(approved device);also sometimes measurements by doctor are higher than the measurements at home("white coan fenomenon).
He must too go to his doctor for reviews periodically.
I wish you good health.