7 Step Ruler,ECG/EKG 7 Step Ruler Card for ECG/EKG Interpretation, Portable Pocket ECG EKG Card Ruler ECG Reference Guide with Protect Sheath,ECG/EKG Assessment Tool (2Pcs)

【Step-by-Step ECG Evaluation】: Provides a systematic approach to ECG analysis with clear reference points for key measurements: Heart Rate: Quick and approximate heart rate calculation. Rhythm: Assessment of whether the heart rhythm is regular or irregular. Axis: Rapid reference for normal, left, or right axis deviation, indicated by up and down arrows.

【Comprehensive ECG Analysis Tool】: A compact, ID-sized transparent card designed to simplify ECG interpretation. Perfectly sized to fit in your card holder, making it easy to carry and access. Ideal for students and experienced clinicians alike

【Detailed Interval Measurements】: Offers precise reference ranges for: PR Interval: Reference for PR interval duration in milliseconds, with a grid for measurement. QRS Interval: Reference for QRS and QTc intervals in milliseconds, also measured using the grid. ST Segment: Placement along the isoelectric line to assess ST segment elevation or depression, with a ruler for millimeter measurement.

【T Wave Reference】: Quick guide for potential T wave abnormalities, including a view of cardiac leads for identifying myocardial infarction regions: V1-V4: Anteroseptal myocardial infarction. V3-V6: Anterolateral myocardial infarction.

【User-Friendly Design】: Durable plastic construction with a protective case, ensuring the ruler remains in excellent condition for repeated use.