The Medical Lounge ECG Ruler with Heart Rate, Axis, PR Interval, QRS Duration, QTc Interval, and T-Wave Morphology Indicators

The Medical Lounge. Transparent ECG ruler/card. ECG/EKGs made easy by following a 7 step plan. Pocket sized 8.6cm x 5.4cm. Ideal for students, paramedics, EMT's, nurses & doctors.

YardCard - Medical Reference Card Set: ECG, Blood Test Ranges, Glasgow Scale, SBAR, & NEWS2 | Ideal for Medical & Nursing Students, Paramedics

ECG/EKG Rhythm Pocket Card, Double Sided ECG/EKG RhythmCalipers Pocket Card | ECG Rate Pocket Cards EKG Calipers For Nurses, EKG Techs, Students Studying