Tā de xīnzàng shūzhāngyā piān gāo, xūyào fúyào kòngzhì.
His diastolic blood pressure is on the high side; he needs medication to control it.
Tips
usage
舒张 (shūzhāng) means 'to relax / dilate', the diastolic phase is when the heart muscle relaxes between beats. The opposite is 心脏收缩压 (xīnzàng shōusuōyā), systolic pressure, the higher number. Often shortened to 舒张压.