Increase in Intracranial Pressure | MDS entrance preaparations

Increase in intracranial pressure is not associated with:
A. Deterioration of consciousness        
B. Tachycardia                    
C. Respiratory depression                    
D. Increase in BP

Ans. B

When intracranial pressure is elevated to more than 33 mmHg over a short period, cerebral blood is significantly reduced l/t deterioration consciousness. The resultant ischemia stimulates the vasomotor area & systemic blood pressure rises.

Stimulation of vagal outflow produces bradycardia & respiration is slowed. The blood pressure rise helps to maintain the cerebral blood flow. (Cushing reflex)