Heart is in
The heart is located in the middle of the chest, behind the sternum and above the diaphragm. About 2/3 lies to the left of the sternum, midline between the 2nd and 6th rib. The rest is to the right.
What is the mediastinum?
This is called the Widowmaker.
What is the Left Anterior Descending (LAD)?
These special cells help the heart pump at a normal rate.
What are pacemaker cells?
A rhythm with a rate of 60- 100 beats per minute.
What is Sinus Rhythm?
Two consecutive premature complexes.
What is a Couplet?
There are four valves in the heart. The tricuspid, bicuspid, pulmonic and ...
What is the aortic valve?
One is reversable and the other is not.
What is ischemia and infarction?
This is the path that the electrical current follows in the heart.
What is the SA node to the Bachman's and AV bundle, then the bundle branches left and right to the Purkinje fibers.
A rhythm with a pause on the strip - until a secondary branch fires and resumes on the same rhythm.
What is Sinus Arrest?
Dysrhythmia originating in the atrioventricular (AV) bundle with a rate between 61 and 100 beats per minute
What is Accelerated Junctional Rhythm?
When the atrium relaxes, it passively fills with blood. When the pacemaker cells trigger, they cause the heart muscles to contract, causing the chamber to fill and the valve to open and create a suction effect, pulling the blood into the next chamber.
What is aortic kick?
Contraction and Relaxation have special words for the heart.
what is Systole and Diastole?
The distortion of an ECG tracing by electrical activity that is non cardiac in origin.
What is artifact?
Stroke Volume X Heart Rate =
What is cardiac output?
A beat that occurs because of simultaneous activation of one cardiac chamber by two sites (foci); in pacing, the ECG waveform that results when an intrinsic depolarization can of that cardiac chamber.
What is a Fusion Beat?
Anterior is the front.
Posterior is the back.
Superior is above.
Inferior is below.
What are the planes of the heart?
The device used to measure the distance between R-R or P-P waves.
What is a calliper?
This measurement is the most accurate when getting the heartrate.
What is the small box method?
PAC not followed by a QRS complex.
What is a Blocked/Nonconducted PAC?
The inability of the artificial pacemaker stimulus to depolarize the myocardium
What is Failure to Capture?
The heart has 4 layer with the acronym PEpMEn.
What are the Pericardium, Epicardium, Myocardium, Endocardium?
This causes the contraction but is not the contraction itself.
What is depolarization?
Waveforms form the rhythm off the isoelectric line that are made up of...
What is the P wave, QRS and T wave?
Cardiac dysrhythmia that occurs because of impulses originating from various sites, including the SA node, atria, and/or the AV junction, requires at least three different P waves, seen in the same lead, for proper diagnosis.
What is Wandering Atrial Pacemaker (WAP)?
Due to an irritation the beat comes earlier than the next expected beat of the underlying rhythm.
What is a PVC, PAC or PJC?