(hy: os ydych chi'n cymryd 3 darlleniad yna byddech chi'n cyfrifo'ch Systolig fel a ganlyn (145 + 150 + 155)/3 = 150), yna ailadroddwch gyda'r darlleniad gwaelod sef eich pwysedd gwaed Diastolig.
The information on this page is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional for personalised medical guidance.