|
The mean arterial pressure (MAP) is a term used in medicine to describe an average blood pressure in an individual. It is defined as the average arterial pressure during a single cardiac cycle. ==Calculation== Total Peripheral Resistance (TPR) is represented mathematically by the formula: R = ΔP/Q〔Total peripheral resistance, Wikipedia〕 R is TPR. ΔP is the change in pressure across the systemic circulation from its beginning to its end. Q is the flow through the vasculature (equal to cardiac output) In other words: Total Peripheral Resistance = (Mean Arterial Pressure - Mean Venous Pressure) / Cardiac Output Therefore, Mean arterial pressure can be determined from:〔(Cardiovascular Physiology Concepts: Mean Arterial Pressure, Richard E. Klabunde, Ph.D )〕 : where: * is cardiac output * is systemic vascular resistance * is central venous pressure and usually small enough to be neglected in this formula. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「mean arterial pressure」の詳細全文を読む スポンサード リンク
|