How To Treat Drop In BP Level And Weak Pulse?

during one your clinical sessions, Mrs John is brought to the ER after being involved in an accident an auto accident,She has lost some blood and has rapid, but weak pulse. Her blood pressure is dropping below the normal range.please explain what compensatory mechanisms will operate to help regulate her blood pressure and make adjustments.Discuss the roles of the various systems and their corresponding hormones/chemicals that work together to regulate this process