EKG Basics Quiz

What is the normal range of heart rate for an adult in beats per minute (bpm)?

• 30-60 bpm

• 60-100 bpm

• 100-140 bpm

• 140-180 bpm

Which of the following best describes Sinus Bradycardia?

• A heart rate below 60 bpm with a regular rhythm

• A heart rate above 100 bpm with a regular rhythm

• A heart rate below 60 bpm with an irregular rhythm

• A heart rate above 100 bpm with an irregular rhythm

What is the primary characteristic of Sinus Tachycardia on an EKG?

• Heart rate less than 60 bpm

• Heart rate greater than 100 bpm

• P wave inversion

• QRS complex widening

Which of the following is a common type of EKG interference?

• Baseline wander

• Temperature drift

• Humidity effect

• Barometric pressure changes

What does a normal P wave represent in an EKG?

• Ventricular depolarization

• Ventricular repolarization

• Atrial depolarization

• Atrial repolarization

What is the typical duration of a QRS complex in a normal EKG?

• Less than 50 milliseconds

• 50 to 100 milliseconds

• 100 to 150 milliseconds

• More than 150 milliseconds

Which of the following is NOT a typical feature of Sinus Rhythm on an EKG?

• Consistent P waves before each QRS complex

• Variable heart rate

• QRS complex follows each P wave

• Regular rhythm

What is the effect of muscle tremor interference on an EKG reading?

• Causes the baseline to shift

• Results in irregular P waves

• Produces erratic spikes throughout the tracing

• Lengthens the QT interval

In the context of EKG, what does the term "artifact" generally refer to?

• A genuine electrical activity of the heart

• An abnormal but expected variation in heart rhythm

• Any distortion or error in the EKG tracing not caused by the heart's electrical activity

• A critical condition detected by the EKG

Which condition is typically indicated by a heart rate of 120 bpm with a regular rhythm in an adult?

• Normal sinus rhythm

• Sinus Bradycardia

• Sinus Tachycardia

• Atrial fibrillation