Measuring the extremity -the best indicator of peripheral edema is measuring the extremity. a paper tape measure should be used rather than one of plastic or cloth, and the area should be marked with a pen, providing the most objective assessment. weighing the client daily is incorrect because it will not indicate peripheral edema. measuring the intake and output is incorrect because it will not indicate peripheral edema. checking for pitting edema is incorrect it is less reliable than measuring with a paper tape measure.