Hypertension is a disease of the cardiovascular system caused by an unhealthy lifestyle that can cause an increase in blood pressure above normal, a decrease in oxygen levels in the brain with saturation < 95%, and the occurrence of ineffective Cerebral Perfusion with signs of increased intracranial pressure such as headaches, and nausea and vomiting. Emergency treatment in patients with nasal cannula oxygen to reduce shortness of breath, increase oxygen saturation > 95% and reduce signs of increased intracranial pressure. Using a descriptive case study with a nursing care process consisting of independent action by monitoring oxygen saturation and providing a semi-Fowler position and collaborative action by giving nasal oxygen cannula 4 liters/minute. The patient's shortness of breath has been reduced with oxygen saturation increasing by 98%, breathing rhythm is regular with a frequency of 20x/minute, and signs of increased intracranial pressure are reduced. Caring attitude and empathy towards patients, which are necessary for emergency nursing care to overcome and manage hypertension emergencies, can be overcome.