Gorny D A
AACN Clin Issues Crit Care Nurs. 1993 Feb;4(1):66-80.
Arterial blood pressure (BP) measurements, which include invasive direct methods and noninvasive indirect methods, provide a picture of the hemodynamic status of the patient. Invasive BP methods measure pressure pulse wave amplitude; noninvasive methods rely on blood flow or arterial wall motion as a basis for the determination of BP values. To obtain the most accurate BP value, the clinician must identify which measurement variables in a specific clinical situation are most contributory to error and, if possible, use a method of measurement for which the sources of error are not parallel. Blood pressure values obtained by different methods cannot be compared without a thorough understanding of the user-related and instrumentation-related limitations associated with each BP measurement technique.
动脉血压（BP）测量包括有创直接测量法和无创间接测量法，可反映患者的血流动力学状态。有创血压测量法测量压力脉搏波幅度；无创测量法依靠血流或动脉壁运动来确定血压值。为获得最准确的血压值，临床医生必须确定在特定临床情况下哪些测量变量最容易导致误差，并且在可能的情况下，使用误差来源不相同的测量方法。如果没有充分了解每种血压测量技术相关的与用户和仪器相关的局限性，就无法比较通过不同方法获得的血压值。
