Features:
1: Clear ID size cards for easy interpretation, perfect size to fit in your card holder for easy storage and for access, designed for the 7 step interpretation measurement.
7 step scale assessment tool. Step by step tracking process and landmarks to help remember those hard to remember key points!
1. Heartbeat: This will provide a quick but approximate value.
2. Rhythm: Assess if the beat is regular or irregular.
3. : A quick reference to deviation from normal, left or right . An arrow pointing up indicates a positive deviation and an arrow pointing down indicates a negative deviation.
4. PR Interval: This gives you a reference for the PRI range in milliseconds. There is also a block on the right side where you can measure the PRI.
5. QRS Interval: As shown above, it gives you the QRS and QTc ranges in milliseconds, and you can use these blocks again to measure the QRS interval.
6.ST /Depression: Place the posterior straight along the isoelectric line to assess if it is ST or ST depression. There is a ruler to measure the degree of both in millimeters.
7. T wave: Finally, a quick reference to possible T wave abnormalities. Remember: V1-V4= anterior septal for MI, V3-V6= anterolateral for MI.

Specifications:
Part Name: 7-step ruler
Material: Plastic
Size: As shown in the picture
Color: Transparent
Difference: A: 7-step ruler alone, B: 7-step ruler [with card holder]

Package Contents:
A: 1*7-step ruler
B: 2*7-step ruler
C:1*Storage Box

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