EKG PRACTICE TEST WITH VERIFIED
QUESTIONS AND ANSWERS|| GUARANTEED
PASS|| ALREADY GRADED A+|| LATEST
VERSION 2025
What chemoreceptors are located in aortic and carotid bodies, and respond to
O2 < 60 mmhg? - ANSWER-Peripheral
What drug effect effects the speed of conduction through the AV junction? -
ANSWER-dromotropic drugs
This corresponds with the onset of the QRS complex to approimately the peak
of the T wave? - ANSWER-Absolute Refractor Period
_____ cells cannot be stimulated to conduct an electrical impulse, no matter
how strong the stimulus in what period? - ANSWER-cardiac
absolute refractor period
What wave represents when the heart is trying to rest? - ANSWER-T wave
A reflection of the difference in the concentration of ions across a cell
membrane at any given time is called? - ANSWER-the action potential
During action potential, postive and neg ions change across the membrane, once
they switch the cell cannot be __________ again. - ANSWER-stimulated
, What is the absence of a normal rhythm? - ANSWER-arrhythmia
The ability of cardiac pacemaker cells to spontaneously initiate an electrical
impulse without being stimulated from another source is called what? -
ANSWER-automaticity
The AV junction makes up what? - ANSWER-av node and bundle of HIS
What node is a bundle of specialized cells located in the lower portion of the
right atrium? - ANSWER-AV node
What is the function of the AV node? - ANSWER-delays the electrical impulse
in order to allow the atria to contract and complete filling the ventricles
What are the two cell types of the cardiac cells? - ANSWER-Myocardial cells
and Electrical cells
What are the 3 major electrolytes? - ANSWER-sodium
potassium
calcium
What is the impulse called when it originated from another source other than
SA node? - ANSWER-ectopic
What is the it called when it orginated from a site above the ventricles? -
ANSWER-supraventricular
What is a modified chest lead with the positive electrode placed on the right mid
chest at the 4th intercostal space? It can help determine the origin of abnormal
complexs. - ANSWER-MCL1
QUESTIONS AND ANSWERS|| GUARANTEED
PASS|| ALREADY GRADED A+|| LATEST
VERSION 2025
What chemoreceptors are located in aortic and carotid bodies, and respond to
O2 < 60 mmhg? - ANSWER-Peripheral
What drug effect effects the speed of conduction through the AV junction? -
ANSWER-dromotropic drugs
This corresponds with the onset of the QRS complex to approimately the peak
of the T wave? - ANSWER-Absolute Refractor Period
_____ cells cannot be stimulated to conduct an electrical impulse, no matter
how strong the stimulus in what period? - ANSWER-cardiac
absolute refractor period
What wave represents when the heart is trying to rest? - ANSWER-T wave
A reflection of the difference in the concentration of ions across a cell
membrane at any given time is called? - ANSWER-the action potential
During action potential, postive and neg ions change across the membrane, once
they switch the cell cannot be __________ again. - ANSWER-stimulated
, What is the absence of a normal rhythm? - ANSWER-arrhythmia
The ability of cardiac pacemaker cells to spontaneously initiate an electrical
impulse without being stimulated from another source is called what? -
ANSWER-automaticity
The AV junction makes up what? - ANSWER-av node and bundle of HIS
What node is a bundle of specialized cells located in the lower portion of the
right atrium? - ANSWER-AV node
What is the function of the AV node? - ANSWER-delays the electrical impulse
in order to allow the atria to contract and complete filling the ventricles
What are the two cell types of the cardiac cells? - ANSWER-Myocardial cells
and Electrical cells
What are the 3 major electrolytes? - ANSWER-sodium
potassium
calcium
What is the impulse called when it originated from another source other than
SA node? - ANSWER-ectopic
What is the it called when it orginated from a site above the ventricles? -
ANSWER-supraventricular
What is a modified chest lead with the positive electrode placed on the right mid
chest at the 4th intercostal space? It can help determine the origin of abnormal
complexs. - ANSWER-MCL1
