Luna and Aiden are studying EKGs in class. When they look at the QRS interval on the EKG, what is the main event happening in the heart at that moment?

Abigail and Charlotte are learning about the heart in science class. After the heart muscle contracts, which process helps the cardiac muscle cells return to their resting state?

Maya and Charlotte are studying EKG waveforms in class. They notice the T-wave and wonder what it represents. Can you help them out?

What does the T-wave on an EKG waveform represent?

Define depolarization in the context of cardiac physiology.

Define repolarization in the context of cardiac physiology.

Aria, Ethan, and Zoe are studying for their cardiology quiz! Can you help them out? Which part of the EKG waveform shows when the atria are contracting?

Grace and Benjamin are studying EKGs in class. During the QRS interval of the EKG waveform, what is happening in the heart?

Aria and Nora are studying for their cardiology quiz! Can you help them out? During which phase does repolarization of the ventricles occur in the EKG waveform?

Elijah and Sophia are learning about the heart in class. When their teacher asks, "What does depolarization mean in the context of cardiac physiology?" which answer should they choose?

Which of the following best describes repolarization?

What does the PR interval represent in an EKG waveform?

Which of the following is associated with depolarization in the EKG waveform?

Benjamin and Charlotte are studying heart rhythms for their big test. Which of the following is considered a basic heart rhythm that they should definitely remember?

Noah and Abigail are studying EKGs in class. Noah asks, "Hey Abigail, do you know what the PR interval measures on an EKG?" Can you help them out?

Evelyn and Mason are studying for their EKG exam. Evelyn asks, "Hey Mason, do you remember how many seconds 1 small box on an EKG strip represents?" Can you help them out?

Nora and James are studying EKG strips together. If they count 5 large boxes on an EKG strip, can you help them figure out the total time represented?

Isla, Harper, and Scarlett are learning how to set up an EKG machine for their science class. Can you help them figure out the correct order for placing the EKG electrodes on the chest?

What is the normal range for a sinus rhythm in beats per minute (bpm)?

Abigail and Oliver are racing to see whose heart beats faster! If a heart rate goes above 100 bpm, what is this speedy rhythm called?

What is the duration of one small box on an EKG strip?

Which of the following is the correct duration for a normal PR interval?

Olivia and Aiden are learning to read EKG strips in class. If Olivia counts the number of large boxes that equal one second on an EKG strip, how many should she count?

Samuel and Avery are learning about ECG electrode placements. According to the memory trick, where should the "WHITE" electrode be placed to help Mason remember?

Noah and Ava are helping James set up a standard EKG for their science class. Can you help them out? Which electrode should they place on the left leg?

If a patient’s EKG shows a QRS complex duration of 0.15 seconds, what does this indicate?

What is the maximum normal duration for the QT interval on an EKG?

Elijah and Anika are trying to remember how to place the "SMOKE" and "FIRE" electrodes using the memory trick. Which of the following best describes where they should put the electrodes?

Which rhythm interpretation is characterized by a "tombstone appearance" and can be a deadly rhythm?

Maya and Kai are studying ECGs together. Maya asks, "Kai, do you know the key clue for spotting Atrial Fibrillation (A-fib) on an ECG?" What should Kai answer?

Scarlett and Aria are reviewing ECG rhythms in class. Which rhythm do they jokingly call the "ultimate nap time" because it looks like a "flat line" on an ECG?

Aria and Mason are studying ECGs together. They come across a rhythm that looks like a row of tiny saw blades between the R-R intervals. Which main feature are they most likely seeing that points to Atrial Flutter (A-flutter)?

Kai, Anika, and William are studying ECGs together. Suddenly, Kai spots some "small fibbing waves" on the screen and challenges the group: Which rhythm interpretation is associated with these mysterious waves?

William and Scarlett are reviewing ECGs in class. They spot a patient’s ECG that shows a normal rhythm but at a super speedy rate! Which rhythm interpretation should they choose?

Which rhythm is identified by a premature conduction of a QRS complex?

If an ECG shows a normal rhythm but at a slow rate, what is the rhythm interpretation?

Scarlett and Luna are studying ECG rhythms together. Scarlett says, "Hey Luna, which rhythm interpretation is linked to an ECG that looks like S's?" Can you help them out?

Emma, Lily, and Abigail are studying ECGs together. They come across the rhythm strip below. Which of the following best describes a 1st degree heart block?

Which heart block is characterized by progressively lengthening PR intervals until a QRS complex is dropped?

Sophia and Aria are studying ECGs together. They notice a heart rhythm where there are sudden dropped QRS complexes, but the PR interval doesn’t get longer each time. Which type of heart block are they looking at?

Which heart block is characterized by complete dissociation between P waves and QRS complexes?

Which electrolyte imbalance is most likely to cause tall, peaked T waves on an ECG?

A patient’s ECG shows a prolonged QT interval. Which electrolyte imbalance is most likely responsible?

Which electrolyte imbalance is associated with flattened T waves and the presence of U waves on an ECG?

Which of the following electrolyte imbalances is most likely to cause a shortened QT interval on an ECG?

Noah, Emma, and Sophia are studying ECGs together. They notice a heart rhythm where the PR interval is prolonged (longer than 0.20 seconds), and Noah exclaims, "Hey, the R is really far from the P!"

Which type of heart block are they looking at?

Daniel, Ethan, and Samuel are studying ECGs together. Suddenly, Daniel spots a flattened or inverted T wave on the ECG! Which electrolyte imbalance should he suspect?

What is the main distinguishing feature of a 2nd degree (Wenckebach or Mobitz Type I) heart block on an ECG?

Which electrolyte imbalance is indicated by a tall T wave and ST depression on an ECG?

A patient’s ECG shows that some R waves do not get through. Which type of heart block does this indicate?

Which electrolyte imbalance is associated with a shortened ST segment on an ECG?

Luna and Ethan are studying ECGs together. If they notice that the P waves and QRS complexes just can't seem to agree or sync up on an ECG, which type of heart block are they looking at?

Which electrolyte imbalance is associated with a prolonged PR interval and a wide QRS complex?

QT prolongation on an ECG is most likely due to which electrolyte imbalance?

Which electrolyte imbalance is associated with tall, peaked T waves on an ECG?

What does the acronym STEMI stand for in cardiology?

What does the acronym NSTEMI stand for in cardiology?

Which of the following best describes the change in biomarkers in both STEMI and NSTEMI?

Which ECG finding is characteristic of a STEMI but not of an NSTEMI?

What does STEMI stand for?

Which type of myocardial infarction is associated with a complete blockage of a coronary artery?

What is a key difference in the ST segment on an ECG between STEMI and NSTEMI?

Which of the following is true about biomarkers in both STEMI and NSTEMI?

A patient’s ECG shows ST depression or T inversion, but not ST elevation. Which type of myocardial infarction is most likely?

What does the diagram illustrate about the difference between STEMI and NSTEMI on an ECG?

Which two conditions place the patient at risk for blood clots?

What is a racing pulse which originates from above the ventricle called?

PEA stands for:

What is the term for irregular and false readings caused by patient or lead movement?

NSR stands for:

Which node is the primary pacemaker of the heart?

Ventricular Tachycardia (VT) patients can have a pulse or no pulse.

A myocardial infarction will always present with ST elevation.

A bundle branch block (BBB) is not able to be detected by an EKG.

An implanted pacemaker is a contraindication to performing an EKG.

Which two heart conditions both cause pooling of blood in the atria, increasing the risk for blood clots?

What is supraventricular tachycardia?

What does PEA stand for in EKG terminology?

What is the term for irregular and false EKG readings caused by patient or lead movement?

What does NSR stand for in EKG interpretation?

Which node is the primary pacemaker of the heart?

Ventricular Tachycardia (VT) patients can have a pulse or no pulse. Is this statement true or false?

A myocardial infarction will always present with ST elevation. Is this statement true or false?

A bundle branch block (BBB) is not able to be detected by an EKG. Is this statement true or false?

An implanted pacemaker is a contraindication to performing an EKG. Is this statement true or false?

Which treatment is recommended for pulseless ventricular tachycardia?

What is the key point associated with Torsades de pointes?

Which arrhythmia is treated with IV amiodarone or IV lidocaine?

What is the recommended treatment for complete heart block?

Which of the following is a key point for artifact on an ECG?

A patient with peaked T-waves should have which lab values assessed?

Which arrhythmia is often seen in endurance athletes at baseline?

What is the initial action for a patient with PVCs (Premature Ventricular Contractions)?

Which arrhythmia is associated with anxiety and stimulants, and may be treated with beta blockers?

What is the key point for paroxysmal atrial fibrillation?

Which treatment is recommended for Complete heart block?