ICU Exam 1: Dysrhythmias Exam
Actual Questions and Answers 2026
dysrhythmias (arrhythmias) occur when there ? -
correct answer ✅is any disturbance in the cardiac conduction
pathway
EKG records? -
correct answer ✅electrical changes in heart muscle caused by an
action potential
5 lead EKG used most in? -
correct answer ✅ICU to allow for viewing at several leads at any
time
____ electrode EKG at minimum -
correct answer ✅3
optimal lead for analysis of ventricular ectopy -
correct answer ✅lead V1
which lead is the easiest to monitor heart rate? -
correct answer ✅lead II
-positive P wave & QRS complex
-tallest QRS complex
,ICU Exam 1: Dysrhythmias Exam
Actual Questions and Answers 2026
normal sinus rhythm rate? -
correct answer ✅60-100 bpm
normal sinus rhythm rhythm? -
correct answer ✅regular
normal sinus rhythm P wave? -
correct answer ✅present, 1 per QRS
normal sinus rhythm PR interval? -
correct answer ✅0.12-0.20 seconds
normal sinus rhythm QRS complex? -
correct answer ✅0.06-0.10 seconds
sinus bradycardia rate? -
correct answer ✅<60 bpm
sinus bradycardia rhythm? -
correct answer ✅regular
,ICU Exam 1: Dysrhythmias Exam
Actual Questions and Answers 2026
sinus bradycardia P wave? -
correct answer ✅present, 1 per QRS
sinus bradycardia PR interval? -
correct answer ✅0.12-0.20 seconds
sinus bradycardia QRS complex? -
correct answer ✅0.06-0.10 seconds
sinus tachycardia rate? -
correct answer ✅>100 bpm
sinus tachycardia rhythm? -
correct answer ✅regular
sinus tachycardia P wave? -
correct answer ✅present, 1 per QRS
sinus tachycardia PR interval? -
correct answer ✅0.12-0.20 seconds
, ICU Exam 1: Dysrhythmias Exam
Actual Questions and Answers 2026
sinus tachycardia QRS complex? -
correct answer ✅0.06-0.10 seconds
sinus dysrhythmia:
rate?
rhythm?
P wave?
PR interval?
QRS complex? -
correct answer ✅rate: variable
rhythm: irregular
P wave: present, 1 per QRS
PR interval: 0.12-0.20 seconds
QRS complex: 0.06-0.10 seconds
causes of sinus bradycardia? -
correct answer ✅-can be normal in well trained athletes or during
sleep
Actual Questions and Answers 2026
dysrhythmias (arrhythmias) occur when there ? -
correct answer ✅is any disturbance in the cardiac conduction
pathway
EKG records? -
correct answer ✅electrical changes in heart muscle caused by an
action potential
5 lead EKG used most in? -
correct answer ✅ICU to allow for viewing at several leads at any
time
____ electrode EKG at minimum -
correct answer ✅3
optimal lead for analysis of ventricular ectopy -
correct answer ✅lead V1
which lead is the easiest to monitor heart rate? -
correct answer ✅lead II
-positive P wave & QRS complex
-tallest QRS complex
,ICU Exam 1: Dysrhythmias Exam
Actual Questions and Answers 2026
normal sinus rhythm rate? -
correct answer ✅60-100 bpm
normal sinus rhythm rhythm? -
correct answer ✅regular
normal sinus rhythm P wave? -
correct answer ✅present, 1 per QRS
normal sinus rhythm PR interval? -
correct answer ✅0.12-0.20 seconds
normal sinus rhythm QRS complex? -
correct answer ✅0.06-0.10 seconds
sinus bradycardia rate? -
correct answer ✅<60 bpm
sinus bradycardia rhythm? -
correct answer ✅regular
,ICU Exam 1: Dysrhythmias Exam
Actual Questions and Answers 2026
sinus bradycardia P wave? -
correct answer ✅present, 1 per QRS
sinus bradycardia PR interval? -
correct answer ✅0.12-0.20 seconds
sinus bradycardia QRS complex? -
correct answer ✅0.06-0.10 seconds
sinus tachycardia rate? -
correct answer ✅>100 bpm
sinus tachycardia rhythm? -
correct answer ✅regular
sinus tachycardia P wave? -
correct answer ✅present, 1 per QRS
sinus tachycardia PR interval? -
correct answer ✅0.12-0.20 seconds
, ICU Exam 1: Dysrhythmias Exam
Actual Questions and Answers 2026
sinus tachycardia QRS complex? -
correct answer ✅0.06-0.10 seconds
sinus dysrhythmia:
rate?
rhythm?
P wave?
PR interval?
QRS complex? -
correct answer ✅rate: variable
rhythm: irregular
P wave: present, 1 per QRS
PR interval: 0.12-0.20 seconds
QRS complex: 0.06-0.10 seconds
causes of sinus bradycardia? -
correct answer ✅-can be normal in well trained athletes or during
sleep
