Hello, Thanks for writing to Health Care magic, I am Dr , Muhammad Ahmad , I have read your question closely, I understand your concern and will be helping you with your health related problem. One reading of 170/110 does not make you a hypertensive it might have been any body or mental stress or some high salt intake which could have caused this problem. But yes this reading does tell us that you are prone to get high blood pressure in future if care is not taken. Here is what I would like to suggest you as further plan of action after what has happened. 1) Make some life style changes. 2) Keep a check at your salt intake, salt is the biggest determinant of blood pressure. 3) Along with salt also take care of your fat intake. 4) Stay physically active. 5) Reduce your weight if you need to. 6) Keep monitoring your blood pressure twice a day. If you consistently get readings above 150/90 then contact your doctor otherwise no problem should be there. For a single high reading you do not have to panic just take care and follow my instructions. I hope this answered your question, If you have more queries I am happy to answer you. Regards. Dr.Muhammad Ahmad