Left Atrial Pressure May Be Estimated Using Pulmonary Capillary Wedge

Left atrial pressure may be estimated using pulmonary capillary wedge pressure (PCWP) measurements; the typical range is 6-12 mm Hg, and recorded values are whole numbers. Over the course of two hours, a patient in the critical care unit has 20 serial PCWP measures collected. The maximum recorded value among these 20 observations is 12 mm Hg, while the minimum recorded value is 10 mm Hg. Which of the following is most likely to remain unaltered if the next measurement is 26 mm Hg?

A) Mean
B) Mode
C) Range
D) Standard deviation
E) Variance

Correct Answer:

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