DYSRHYTHMIAS EXAM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 ALL ANSWERS
GET IT 100% CORRECT BEST RATED A+ FOR PASS
PR interval
0.12-.0.2 sec
> 0.2 represents conduction delay
QRS Complex
< 0.12 sec
> 0.12 suggests bundle branch or conduction delay
QT interval
Should be less than half of the R-R interval
> 0.50 sec is considered dangerously prolonged
Low potassium EKG
Prolonged PR and QT intervals
ST segment depression
T wave flattening or inversion
PVCs
AV blocks
High potassium EKG
Tall peaked T waves
QRS complex widens
,DYSRHYTHMIAS EXAM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 ALL ANSWERS
GET IT 100% CORRECT BEST RATED A+ FOR PASS
Cardiac arrest
Asystole
Low magnesium EKG
Prominent U waves
Flattening of T waves
Prolonged QT intervals
Widening of QRS complex
Torsade de pointes
High magnesium EKG
Bradycardia
Prolonged PR, QRS, and QT intervals
Widened QRS complex
Complete heart blocks
Cardiac arrest
Low calcium EKG
Prolonged ST segment
PVCs
High calcium EKG
Shortened ventricular repolarization and QT interval
First degree AV block
, DYSRHYTHMIAS EXAM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 ALL ANSWERS
GET IT 100% CORRECT BEST RATED A+ FOR PASS
Risk factors for development of dysrhythmias
Hypoxemia
Fluid abnormalities
Altered body temperature
Fluid volume excess
Ventricular enlargement, decreased contractility, premature
beats; AV blocks
Fluid volume deficit
Tachycardia
Hyperthermia
Increases body's oxygen demand, HR increases by 10 bpm for
ever 1º F; may increase myocardial excitability
Hypothermia
Decreases body's oxygen demand, bradycardia < 60 bpm,
prolonged PR and QT intervals and wide QRS complexes
Sinus
Normal Ps
Normal PR interval
Normal QRS
LATEST DOWNLOADED 2025/2026 ALL ANSWERS
GET IT 100% CORRECT BEST RATED A+ FOR PASS
PR interval
0.12-.0.2 sec
> 0.2 represents conduction delay
QRS Complex
< 0.12 sec
> 0.12 suggests bundle branch or conduction delay
QT interval
Should be less than half of the R-R interval
> 0.50 sec is considered dangerously prolonged
Low potassium EKG
Prolonged PR and QT intervals
ST segment depression
T wave flattening or inversion
PVCs
AV blocks
High potassium EKG
Tall peaked T waves
QRS complex widens
,DYSRHYTHMIAS EXAM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 ALL ANSWERS
GET IT 100% CORRECT BEST RATED A+ FOR PASS
Cardiac arrest
Asystole
Low magnesium EKG
Prominent U waves
Flattening of T waves
Prolonged QT intervals
Widening of QRS complex
Torsade de pointes
High magnesium EKG
Bradycardia
Prolonged PR, QRS, and QT intervals
Widened QRS complex
Complete heart blocks
Cardiac arrest
Low calcium EKG
Prolonged ST segment
PVCs
High calcium EKG
Shortened ventricular repolarization and QT interval
First degree AV block
, DYSRHYTHMIAS EXAM QUESTIONS AND ANSWERS
LATEST DOWNLOADED 2025/2026 ALL ANSWERS
GET IT 100% CORRECT BEST RATED A+ FOR PASS
Risk factors for development of dysrhythmias
Hypoxemia
Fluid abnormalities
Altered body temperature
Fluid volume excess
Ventricular enlargement, decreased contractility, premature
beats; AV blocks
Fluid volume deficit
Tachycardia
Hyperthermia
Increases body's oxygen demand, HR increases by 10 bpm for
ever 1º F; may increase myocardial excitability
Hypothermia
Decreases body's oxygen demand, bradycardia < 60 bpm,
prolonged PR and QT intervals and wide QRS complexes
Sinus
Normal Ps
Normal PR interval
Normal QRS
