Thanks for your query at DoctorSpring.com
I appreciate your concern towards your friend.Your friend needs to start antihypertensives immediately as this high blood pressure is harmful to his heart and brain. You can take help of an ambulance. Please, let us know how we can help in this regard.
Patient replied :
What do you think the sudden hearing loss and loss of balance indicates?
He does not seem rational about his situation, how can I convince him?
Though the sudden loss of hearing and loss of balance is not directly related to his severe hypertension. it could be an indicator of a transient ischemic attack and he needs immediate medical attention.
Also, a CT SCAN of the brain is important to rule out any neurological deficit.