Calculating Heart Rate [HR] from an Electrokardiogram [EKG] (2)

The video tutorial explains how to interpret an electrocardiogram (ECG) by identifying the P wave, QRS complex, and T wave, which represent different electrical events of the heart. It demonstrates how to estimate a patient's heart rate by measuring the RR distance between QRS complexes on an ECG. The tutorial includes a practical example using a fictional ECG from the movie Spiderman to calculate the Green Goblin's heart rate, illustrating the process of measuring RR distance and performing the calculation.

What does the P wave in an electrocardiogram represent?

• Atrial depolarization

• Ventricular repolarization

• Atrial repolarization

• Ventricular depolarization

How do you calculate the heart rate from an EKG?

• Measure the distance between T waves and divide by 500

• Measure the distance between P waves and divide by 1000

• Measure the RR distance and divide 1500 by this number

• Count the number of QRS complexes in a minute

What is the RR distance in an EKG?

• The distance between two consecutive T waves

• The distance between the start and end of a QRS complex

• The distance between two consecutive P waves

• The distance between the peaks of two adjacent QRS complexes

In the Spiderman example, what was the estimated heart rate of the Green Goblin?

• 180 beats per minute

• 231 beats per minute

• 150 beats per minute

• 200 beats per minute

How is a person's maximum heart rate generally estimated?

• By multiplying their age by 2

• By subtracting their age from 220

• By adding their age to 100

• By dividing their age by 2