What does depolarization result in?

Which node is considered the "pacemaker" of the heart?

Name the EKG

Name the EKG

Name the EKG

The instrument (machine) by which the electrical activities of the heart are recorded.

Atrial depolarization is complete.

which is the correct order?

The QRS complex is normally __________ seconds in duration

A common cardiac dysrhythmia characterized by premature heartbeats originating in the atria.

Rate: less than 60 bpm

Rhythm: regular

If a spike is seen before the P wave, then it indicates the presence of a single chamber atrial pacemaker

Name the EKG

Everything is normal, rate is 60 -100

Atria are irritable and quivering, causing fibrillatory waves between QRS complex

Every other beat is a PVC

Two PVC's in a row

Everything is normal except the PR interval is greater then .20 seconds

Every beat on the strip has an absent or inverted P wave

Premature beat, starts in the atria, but not SA node, normal P wave but different from others

Premature early beat that is wide and bizarre

PR interval gets progressively longer and longer until there is a P wave and no QRS

PR interval is constantly the same, but some P waves have no QRS

R to R interval will change (be irregular) in a cycle, not just one beat

Everything is normal except rate is less than 60

Extra P waves visible, PR constantly changes, block between atria and ventricles

Every third beat is a PVC

Ventricles are irritable and no longer contract but quiver, there are no definite complexes

Ventricles are contracting but at a very fast rate, only see wide and bizarre complexes

PVC's originate from different sites, they look different

PVC originates from the same site and they are identical to each other

EKG Interpretation:

A patient has a normal heartbeat of 72 beats per minute. What area of the conduction system should be considered as functioning normally in this patient?

The nurse/Monitor tech determines that a patient’s electrocardiogram is demonstrating normal sinus rhythm. What did they observe to come to this conclusion? (Select all that apply.)

P, Q, R, S, T, U are known as:

Lines between two waves

The period of time from the onset of the P wave to the beginning of the QRS complex.

Seen as a result of the repolarization of the ventricles.

Using the 6 second strip method, what is the HR of this EKG?

Seen as a result of the conduction impulses traveling from the AV node to the Bundle of His.

What part of the ECG tracing represents the repolarization of the purkinje fibers

The heart is a two-sided pump that produces pulmonary circulation and systemic circulation

The waves on the ecg waveform are positive when they go up from the baseline and negative when they go down from the baseline.

The top chambers of the heart are ventricles and the bottom chambers of the heart are the atria

The nurse is assessing the client’s electrocardiography (ECG). What does the P wave on the ECG tracing represent?

What is the ECG tracing between the QRS complex and the T wave called?

The point where the QRS complex and the ST segment meet is called the ST junction or J-point.

1. An ECG rhythm strip shows a ventricular rate of 125 beats/min, a regular rhythm, a PR interval of 0.16 second, a QRS duration of 0.08 second, and one upright P wave before each QRS. This rhythm is sinus _____.