Hoag EKG Test QUESTIONS AAND ANSWERS |
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Practice questions for this set
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the AV node will fire at a rate of 40-60 BPM
Choose an answer
What is the hearts primary
1 2 The R wave is the first...
pacemaker?
3 Normal blood flow thru the heart 4 If the SA node is damaged...
Don't know?
Terms in this set (113)
What is the hearts primary The SA node
pacemaker?
,Normal electrical pathway SA node, AV node, bundle of His, right/left bundle
branch, and Purkinje fibers
Final result of this electrical Ventricular contraction
pathway?
If the SA node is damaged... the AV node will fire at a rate of 40-60 BPM
If the AV node is damaged... the Purkinje fibers will fire at a rate of 20-40 BPM
Normal blood flow thru the heart see photo
Electrical activity, atrial/ventricular Interconnected
contraction are all...
If the electrical pathway is altered or The blood flow pathway is also affected & vise
impaired (Afib, VTach).... versa
Depolarization Contraction (systole)
Repolarization Relaxation (diastole)
What does the P wave represent? Contraction of the atrium or depolarization
What does the QRS complex Contraction of the ventricle or depolarization
represent?
The Q wave is the first... negative deflection after the P wave
, The R wave is the first... positive deflection after the P wave
The S wave is the first... negative deflection after the R wave
Normal QRS interval 0.04-0.12 sec (1-3 squares)
What does the T wave represent? ventricular repolarization or relaxation
How is the PR interval measured? from the beginning of the P wave to the beginning
of the QRS complex
Normal PR interval 0.12-0.20 (3-5 squares)
What segment is not measured? The ST segment
What should be evaluated of the ST The shape and location
segment to identify pathologic
conditions? (elevated or depressed?
How is the QT interval measured? From the beginning of the QRS complex to the end
of the T wave
Normal QT interval 0.36-0.44 secs (9-11 squares)
What interval measurement is The QT interval
adjusted for HR?
When measuring ECG intervals, the EXACT- use calipers
measurements must be...
One small box 0.04 seconds
LATEST UPDATE
Save
Practice questions for this set
Learn 1/7 Study with Learn
the AV node will fire at a rate of 40-60 BPM
Choose an answer
What is the hearts primary
1 2 The R wave is the first...
pacemaker?
3 Normal blood flow thru the heart 4 If the SA node is damaged...
Don't know?
Terms in this set (113)
What is the hearts primary The SA node
pacemaker?
,Normal electrical pathway SA node, AV node, bundle of His, right/left bundle
branch, and Purkinje fibers
Final result of this electrical Ventricular contraction
pathway?
If the SA node is damaged... the AV node will fire at a rate of 40-60 BPM
If the AV node is damaged... the Purkinje fibers will fire at a rate of 20-40 BPM
Normal blood flow thru the heart see photo
Electrical activity, atrial/ventricular Interconnected
contraction are all...
If the electrical pathway is altered or The blood flow pathway is also affected & vise
impaired (Afib, VTach).... versa
Depolarization Contraction (systole)
Repolarization Relaxation (diastole)
What does the P wave represent? Contraction of the atrium or depolarization
What does the QRS complex Contraction of the ventricle or depolarization
represent?
The Q wave is the first... negative deflection after the P wave
, The R wave is the first... positive deflection after the P wave
The S wave is the first... negative deflection after the R wave
Normal QRS interval 0.04-0.12 sec (1-3 squares)
What does the T wave represent? ventricular repolarization or relaxation
How is the PR interval measured? from the beginning of the P wave to the beginning
of the QRS complex
Normal PR interval 0.12-0.20 (3-5 squares)
What segment is not measured? The ST segment
What should be evaluated of the ST The shape and location
segment to identify pathologic
conditions? (elevated or depressed?
How is the QT interval measured? From the beginning of the QRS complex to the end
of the T wave
Normal QT interval 0.36-0.44 secs (9-11 squares)
What interval measurement is The QT interval
adjusted for HR?
When measuring ECG intervals, the EXACT- use calipers
measurements must be...
One small box 0.04 seconds
