systolic/diastolic blood pressure是什么意思

英语翻译
Assessment of risk.The relationship between systolic blood pressure and diastolic blood pressure and cardiovascular risk is continuous and graded.The actual level of blood pressure elevation should not be the sole factor in determining treatment.Clinicians should consider the patient's overall cardiovascular risk profile,including smoking,diabetes,abnormal blood lipid values,age,sex,sedentary lifestyle,and obesity,when making treatment decisions.
Screening interval.Evidence is lacking to recommend an optimal interval for screening adults for hypertension.The seventh report of the Joint National Committee on Prevention,Detection,Evaluation,and Treatment of High Blood Pressure (JNC 7) recommends screening every 2 years in persons with blood pressure less than 120/80 mm Hg and every year with systolic blood pressure of 120 to 139 mm Hg or diastolic blood pressure of 80 to 89 mm Hg.[2]
上面的不需要翻译了 麻烦翻译下这个
Clinical Considerations
Patient population under consideration.This recommendation applies to adults without known hypertension.
Screening tests.Office measurement of blood pressure is most commonly done with a sphygmomanometer.High blood pressure (hypertension) is usually defined in adults as a systolic blood pressure of 140 mmHg or higher,or a diastolic blood pressure of 90 mmHg or higher.Because of the variability in individual blood pressure measurements,it is recommended that hypertension be diagnosed only after 2 or more elevated readings are obtained on at least 2 visits over a period of 1 to several weeks.1

英语翻译
Assessment of risk.The relationship between systolic blood pressure and diastolic blood pressure and cardiovascular risk is continuous and graded.The actual level of blood pressure elevation should not be the sole factor in determining treatment.Clinicians should consider the patient's overall cardiovascular risk profile,including smoking,diabetes,abnormal blood lipid values,age,sex,sedentary lifestyle,and obesity,when making treatment decisions.
Screening interval.Evidence is lacking to recommend an optimal interval for screening adults for hypertension.The seventh report of the Joint National Committee on Prevention,Detection,Evaluation,and Treatment of High Blood Pressure (JNC 7) recommends screening every 2 years in persons with blood pressure less than 120/80 mm Hg and every year with systolic blood pressure of 120 to 139 mm Hg or diastolic blood pressure of 80 to 89 mm Hg.2
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