To read an EKG practice test strip, begin by counting the number of QRS-complexes in a six-second interval and multiplying that number by 10 to determine the heart rate. Each large square on the EKG paper represents 0.20... More »

A student can use online resources, such as the reference guide on 40 different arrhythmias that Practical Clinical Skills provides, to practice reading electrocardiogram outputs. A student learns about these different a... More »

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Two great resources for taking EKG practice exams online are ECG-Quiz.com and PracticalClinicalSkills.com. Both websites offer practice exams as well as instructional material for interpreting EKGs. More »

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A heart rate can be calculated from a six-second segment of an EKG strip by counting the number of R waves in the section and multiplying by 10, according to RnCeus.com. Each small square on an EKG strip's horizontal axi... More »

According to the National Institutes of Health, an EKG, or electrocardiogram, can show if a patient is having issues with his heart's electrical system. An EKG is a diagnostic tool that doctors can use to determine if a ... More »

Different parts of the EKG strip graph represent an electrical signal's journey through the heart during an electrocardiogram, explains the National Heart, Lung, and Blood Institute. The electrical pattern represented on... More »

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An EKG is interpreted by systematically analyzing the waves, intervals and segments of the heart’s electrical activity and determining if there are any abnormalities in the tracing, according to Queen’s University School... More »

www.reference.com Health Diagnostics & Imaging