NHA CCMA Study Guide Exam
Prep (Actual Test)
A graphic representation of the electrical activity of the heart Ans- EKG
An abnormal heart rhythm Ans- arrhythmia
Carries oxygenated blood away from the heart Ans- aorta
Prevents blood in the aorta from returning to the left ventricle during diastole Ans- Aortic valve
Electrical or magnetic interference that alters the EKG tracing Ans- Artifact
The absence of any electrical activity in the heart Ans- Asystole
Consists of specialized tissue that is able to regulate the impulses between atria and ventricles Ans- Atrioventricular (AV) node
A small pouch-like structure that fills the ventricles with blood Ans- Atrium
An electrically neutral area on the EKG Ans- Baseline
A valve in the heart that is situated between the left atrium and the left ventricle and prevents the backflow of blood into the right left atrium during diastole.Ans- Biscuspid (mitral) valve
Slow heart rate Ans- Bradycardia 1 / 2
Part of the conduction system responsible for triggering ventricular muscle contraction Ans- Bundle branch
The absence of cardiac activity Ans- Cardiac arrest
A loss of polarization resulting from a sudden influx of sodium ions into the cardiac muscle cells; results in contraction Ans- Depolarization
A specialized interface between the human body and an EKG machine Ans- Electrode
Flexible or solid insulated conductors connected to or leading out from an electrical device. Placed on the skin surface and designed to measure electrical impulses Ans- Leads
Ischemia and death of heart muscle tissue Ans- Myocardial infarction
A medical device that provides artificial stimulation to the heart muscle to trigger contraction Ans- Pacemaker
The standard waveforms found on the EKG tracing. Each wave corresponds to a specific event within the heart's electrical cycle.Ans- PQRST waves
The ONLY artery in the body that carries de-oxygenated blood. Carries blood to the lungs Ans- Pulmonary artery
The only vein that carries oxygenated blood. Carries blood from the lungs to the heart.Ans- Pulmonary vein
The process of moving sodium from inside the cell to the outside, and potassium from outside the cell to the inside. Involves establishing an electrical gradient across a cell membrane Ans- Repolarization
Fast heart rate Ans- Tachycardia
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