Is blood pressure value of 155/119 a cause for concern?
If you have severe complaints, refer to ER
If you have serious complaints, such as dizziness, severe headache, chest pain or other severe complaints, refer to ER.
If no, you will need to visit your GP. He/she will prescribe a treatment to take in case of high blood pressure.
Hope I could help you
In case of further questions don't hesitate to ask