Blood pressure is the pressure that blood acts on the walls of blood vessels (arteries) in every part of the body. Blood flows through blood vessels because it is under a certain pressure. The pressure is created by the work of the heart as a pump. Every time blood is ejected from the heart (systole), the pressure rises, and when blood is pumped into the heart (diastole), the pressure decreases. Therefore, two blood pressure values are measured: the upper value (systolic) and the lower value (diastolic). Blood pressure is variable, changes during the day and night and is subject to many external and internal factors. These changes are the result of the activation of numerous mechanisms by which the organism tries to maintain the appropriate flow depending on the change in living conditions. A significant pressure difference is above 20 mmHg systolic and 10 mmHg diastolic pressure, in which case the patient should be referred for further treatment. The anesthesiologist chooses anesthetics and is responsible for the patient's vital functions.
Siniša Franjić (Wed,) studied this question.