A71-year-old male patient has recently been diagnosed with hypertension. which measurement is a partial indication of effective treatment and management?

The measurement that could be used as  a partial indication of effective treatment and management is: Diastolic blood pressure below 90 mm Hg

For a 71-year old, a normal diastolic blood pressure should be between 70 - 80 mmHg.A diastolic blood pressure between 80-89 is considered normal but higher than ideal, while a diastolic  blood pressure above 90 mm Hg is considered as high