Calculating Heart Rate [HR] from an Electrokardiogram [EKG]

What does the QRS complex in an EKG represent?

• Atrial repolarization

• Ventricular repolarization

• Atrial depolarization

• Ventricular depolarization

How is the RR distance measured on an EKG?

• By measuring the distance between two P waves

• By counting the number of squares between two R waves

• By measuring the distance between two T waves

• By counting the number of P waves

What is the formula used to calculate heart rate from the RR distance?

• RR distance divided by 1,500

• 1,500 divided by RR distance

• 220 minus age

• 1,000 divided by RR distance

In the Spider-Man example, what was the estimated heart rate of the Green Goblin?

• 150 beats per minute

• 180 beats per minute

• 231 beats per minute

• 200 beats per minute

What is the estimated maximum heart rate formula based on age?

• 240 minus age

• 220 minus age

• 180 minus age

• 200 minus age