To Maintain Cardiac Output Adequate to the Metabolic Needs of the Body

question 53

Multiple Choice

To maintain cardiac output adequate to the metabolic needs of the body in case of heavy blood loss the heart would

• A) speed up its contraction rate
• B) increase the contractility of heart muscle
• C) simultaneously speed up its contraction rate and increase the contractility of heart muscle
• D) the cardiac output will decrease and only the transfusion of blood can help