Infants undergoing cardiac surgery require meticulous preoperative assessment of their hemodynamic and thus dehydration must be avoided in patients. Hemodynamic means:

Correct option is A

Ans: (a) Dynamics of blood flow Sol. Hemodynamics refers to the dynamics of blood flow, specifically the study of the movement of blood through the circulatory system, including factors like blood pressure, cardiac output, and vascular resistance. It is crucial for assessing cardiovascular function, especially in patients undergoing cardiac surgery.
Explanation of each option:
· (a) Dynamics of blood flow: Correct answer. Hemodynamics specifically concerns the study of blood flow, including how blood circulates through the heart and vessels, and how this is affected by various factors such as pressure and resistance.
· (b) Dynamics of nervous system: This refers to the functioning of the nervous system, which controls various bodily functions but is not related to hemodynamics.
· (c) Dynamics of breathing: This is the study of respiratory function, specifically the mechanics of breathing and gas exchange, not related to hemodynamics.
· (d) Dynamics of muscle movements: This refers to the study of how muscles contract and produce movement, not related to blood flow and hemodynamics.