| 摘要 |
Nomograms for interpreting electrocardiograms. A Q line appears on the nomograms and may contain a series a calibrations relating to various cardiac rates. A P curve is oriented relative to the Q line for representing normal PR intervals for a particular age group. A T curve is oriented relative to the Q line for representation of normal QT intervals for the age group. The nomograms may feature a Q2 line oriented relative to Q line such that distances between the Q and Q2 lines for various cardiac rates equal the electrocardiogram distance for a cardiac cycle having that cardiac rate. The nomograms may feature a count 2 scale and/or a six second scale for independently determining cardiac rate, a Holter scale, and other information as desired. Complementary color schemes may be used for accentuating boundaries between, for instance, the area between the P and T curves and other areas on the nomograms.
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