ECG Lead System UPDATED Exam
Questions and CORRECT Answers
using surface electrodes record the electrical activity of the heart - CORRECT ANSWER -
what is an ECG
mechanical function - CORRECT ANSWER - electrical activity correlates to
____________
- HR
- heart rhythm
- heart size
- ischemica/infarction
- drug and electrolyte abnormalities - CORRECT ANSWER - what information comes
from ECG
AP; time - CORRECT ANSWER - ECG records the sum total of _______ at a particular
point in time
- negative
- positive
- neutral - CORRECT ANSWER - what direction do electrodes placed on the skin
measure
lead - CORRECT ANSWER - a ________ provides a view of the heart's electrical activity
between one negative and one positive electrode
positive deflection - CORRECT ANSWER - any electrical charge that moves towards the
positive electrode causes a ___________ on the ECG
, upward deflection - CORRECT ANSWER - with basic ECG leads, direction of stimulus
towards the positive causes what reaction
downward deflection - CORRECT ANSWER - with basic ECG leads, direction of
stimulus away from the positive causes what reaction
biphasic deflection - CORRECT ANSWER - with basic ECG leads, direction of stimulus
perpendicular to the positive causes what reaction
rounded deflection - CORRECT ANSWER - with basic ECG leads, direction of stimulus
moving slowly the positive causes what reaction
sharp deflection - CORRECT ANSWER - with basic ECG leads, direction of stimulus
moving rapidly the positive causes what reaction
fontal plane - CORRECT ANSWER - what plane do the limb leads give you
record difference in voltage between extremities - CORRECT ANSWER - what are the
standard leads (I, II, III) doing
electronically created within the ECG unit - CORRECT ANSWER - what are the
augmented leads (aVR - right, aVR - left, aVF - foot) doing
horizontal plane - CORRECT ANSWER - what plane do the chest leads (V1, V2, V3, V4,
V5, V6)give you
RA to LA - CORRECT ANSWER - with standard limb leads, what is the direction for
lead I
RA to LL - CORRECT ANSWER - with standard limb leads, what is the direction for
lead II
Questions and CORRECT Answers
using surface electrodes record the electrical activity of the heart - CORRECT ANSWER -
what is an ECG
mechanical function - CORRECT ANSWER - electrical activity correlates to
____________
- HR
- heart rhythm
- heart size
- ischemica/infarction
- drug and electrolyte abnormalities - CORRECT ANSWER - what information comes
from ECG
AP; time - CORRECT ANSWER - ECG records the sum total of _______ at a particular
point in time
- negative
- positive
- neutral - CORRECT ANSWER - what direction do electrodes placed on the skin
measure
lead - CORRECT ANSWER - a ________ provides a view of the heart's electrical activity
between one negative and one positive electrode
positive deflection - CORRECT ANSWER - any electrical charge that moves towards the
positive electrode causes a ___________ on the ECG
, upward deflection - CORRECT ANSWER - with basic ECG leads, direction of stimulus
towards the positive causes what reaction
downward deflection - CORRECT ANSWER - with basic ECG leads, direction of
stimulus away from the positive causes what reaction
biphasic deflection - CORRECT ANSWER - with basic ECG leads, direction of stimulus
perpendicular to the positive causes what reaction
rounded deflection - CORRECT ANSWER - with basic ECG leads, direction of stimulus
moving slowly the positive causes what reaction
sharp deflection - CORRECT ANSWER - with basic ECG leads, direction of stimulus
moving rapidly the positive causes what reaction
fontal plane - CORRECT ANSWER - what plane do the limb leads give you
record difference in voltage between extremities - CORRECT ANSWER - what are the
standard leads (I, II, III) doing
electronically created within the ECG unit - CORRECT ANSWER - what are the
augmented leads (aVR - right, aVR - left, aVF - foot) doing
horizontal plane - CORRECT ANSWER - what plane do the chest leads (V1, V2, V3, V4,
V5, V6)give you
RA to LA - CORRECT ANSWER - with standard limb leads, what is the direction for
lead I
RA to LL - CORRECT ANSWER - with standard limb leads, what is the direction for
lead II
