Which nursing action is appropriate when measuring for knee-high anti-embolus stockings?

Measuring from the heel to the popliteal space is the most accurate method for fitting knee-high anti-embolus stockings. This measurement ensures that the stockings provide proper compression from the foot up to the back of the knee, which is vital for effective venous return and preventing blood clots. The popliteal space, located at the back of the knee, is the point where the stocking should end to avoid constriction while still providing adequate support to the lower leg.

Other methods, such as measuring from the toes to the knee, could result in stockings that are too short or do not fit effectively over the knee. Measuring with the client standing might not give an accurate representation of the leg's length when the individual is in a resting position, as the leg may appear longer or shorter depending on the posture. Measuring the thigh circumference is not relevant for knee-high stockings, which focus on the area from the heel to just below the knee. Thus, the selected method ensures a proper fit that maximizes the stockings' benefits.