(3 鈥?5 small squares
People also ask
What does a normal EKG look like?
A 鈥渘ormal鈥?EKG is one that shows what is known as sinus rhythm. Sinus rhythm may look like a lot of little bumps, but each relays an important action in the heart. Correspondingly, what is the normal ECG pattern?
How do you interpret an EKG paper?
EKG Interpretation 1 Heart rate: The standard paper speed is 25 mm (5 large squares)/sec. … 2 Rhythm: The cardiac myocytes have an inherent automaticity and can generate an electric impulse. … 3 Axis: Determine both P wave and QRS axes. … 4 Durations/Intervals: a) P wave: Represents atrial depolarization. … More items…
What do the squares on the ECG paper mean?
On the standard ECG paper, with standard calibration, the squares represent: The standard calibration signal will look like this: This will be present at the beginning or end of all four rows of the trace, and shows: Speed = 25mm/sec. VLimb Leads = 10mm/mV.
What is the standard paper speed of EKG?
Basic EKG interpretation 1. Heart rate: The standard paper speed is 25 mm (5 large squares)/sec. This means that if the interval between two beats (R-R) is 5 large squares, the HR is 60 beat/min.