EKG Exam NEwEst 2025/2026 with ComplEtE QuEstioNs
aNd CorrECt aNswErs |alrEady GradEd a+||BraNd NEw
VErsioN!
EKG or ECG stands for: - ANSWER-electrocardiogram
What can an EKG detect? - ANSWER-cardiac arrhythmia or dysrhythmia, ischemia, electrolyte
imbalance, effects of cardiac medications, damage caused by an MI
Define arrhythmia - ANSWER-abnormal cardiac rhythm (think a= without, without rhythm)
Define ischemia - ANSWER-lack of blood supply
What is the electrical pathway of the heart's conduction system? - ANSWER-SA node->AV node-
>Bundle of His->Right and Left Bundle Branches->Purkinje fibers
When the SA node is stimulated, what mechanical action happens in the heart? - ANSWER-Atria
contract
What has to happen for the ventricles to contract? - ANSWER-Electrical conduction has to pass
through the AV node, down the Bundle of His, through the right and left bundle branches, into
the purkinje fibers. Once they reach the Purkinje fibers, then the ventricles will contract.
Electrodes - ANSWER-sticky skin sensors that attach to the patient
, What is the purpose of the gel on the electrodes? - ANSWER-to read the heart's electricity and to
amplify the waveforms
EKG machine is also called an: - ANSWER-electrocardiograph
Name the 2 types of EKG machines: - ANSWER-Single channel and multichannel
When we do an EKG we are looking at the heart from : - ANSWER-12 different points of view or
angles
How many electrodes are used to perform an EKG? - ANSWER-10
What is an amplifier? - ANSWER-Magnifies the heart's electrical signal so it can be recorded.
What is the stylus? - ANSWER-records the motion on the graph paper by burning the impression
into the heat-sensitive paper.
Name the limb leads. - ANSWER-RA, LA, LL, RL
What is unique about EKG paper? - ANSWER-It is head-sensitive and pressure-sensitive.
How big is a small block on EKG paper? - ANSWER-1mm x 1 mm
How big is a large block on EKG paper? - ANSWER-5mm x 5 mm
What speed does normal EKG paper run? - ANSWER-25mm per second
Why would a CCMA increase the speed of the EKG paper? - ANSWER-If the heart rate were very
fast, the speed would be increased to 50mm per second.
aNd CorrECt aNswErs |alrEady GradEd a+||BraNd NEw
VErsioN!
EKG or ECG stands for: - ANSWER-electrocardiogram
What can an EKG detect? - ANSWER-cardiac arrhythmia or dysrhythmia, ischemia, electrolyte
imbalance, effects of cardiac medications, damage caused by an MI
Define arrhythmia - ANSWER-abnormal cardiac rhythm (think a= without, without rhythm)
Define ischemia - ANSWER-lack of blood supply
What is the electrical pathway of the heart's conduction system? - ANSWER-SA node->AV node-
>Bundle of His->Right and Left Bundle Branches->Purkinje fibers
When the SA node is stimulated, what mechanical action happens in the heart? - ANSWER-Atria
contract
What has to happen for the ventricles to contract? - ANSWER-Electrical conduction has to pass
through the AV node, down the Bundle of His, through the right and left bundle branches, into
the purkinje fibers. Once they reach the Purkinje fibers, then the ventricles will contract.
Electrodes - ANSWER-sticky skin sensors that attach to the patient
, What is the purpose of the gel on the electrodes? - ANSWER-to read the heart's electricity and to
amplify the waveforms
EKG machine is also called an: - ANSWER-electrocardiograph
Name the 2 types of EKG machines: - ANSWER-Single channel and multichannel
When we do an EKG we are looking at the heart from : - ANSWER-12 different points of view or
angles
How many electrodes are used to perform an EKG? - ANSWER-10
What is an amplifier? - ANSWER-Magnifies the heart's electrical signal so it can be recorded.
What is the stylus? - ANSWER-records the motion on the graph paper by burning the impression
into the heat-sensitive paper.
Name the limb leads. - ANSWER-RA, LA, LL, RL
What is unique about EKG paper? - ANSWER-It is head-sensitive and pressure-sensitive.
How big is a small block on EKG paper? - ANSWER-1mm x 1 mm
How big is a large block on EKG paper? - ANSWER-5mm x 5 mm
What speed does normal EKG paper run? - ANSWER-25mm per second
Why would a CCMA increase the speed of the EKG paper? - ANSWER-If the heart rate were very
fast, the speed would be increased to 50mm per second.
