EKG strips are strips of paper that display visual readouts from an electrocardiogram (EKG or ECG). They are divided into several small squares, each measuring one millimeter and representing 0.04 seconds. Thicker lines form a larger grid with five squares on each side, representing an interval of 0.2 seconds. Vertical columns represent one mV of voltage for every ten squares. Heart rate is displayed in a staggered line along the grid. They are usually fed into an EKG machine and rolled out during printing.
Grid: Choose an EKG strip with clear grid lines. Make sure the thin lines are are even, continuous, and do not fade along the grid. Look for brightly colored grids to make the black wave line stand out.
Width: Choose an EKG strip with longer columns to allow room for peaks and extreme irregularities. Look for a wide Z-fold strip with center markings for easy reference.
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