BASIC DYSRHYTHMIA COURSE EXAM
QUESTIONS & CORRECT ANSWERS
100%
the major pacemaker of the heart - correct answer ✔✔SA node
inherent rate of the SA node - correct answer ✔✔60-100
inherent rate of the AV node - correct answer ✔✔40-60
inherent rate of the ventricles (purkinjie fibers) - correct answer ✔✔20-40
phase of contraction - correct answer ✔✔systole
phase of relaxation - correct answer ✔✔diastole
what does atrial depolarization show on the ECG? - correct answer ✔✔p wave
what does ventricle depolarization show on the ECG? - correct answer ✔✔QRS complex
what does repolarization show on the ECG? - correct answer ✔✔T wave
what does sympathetic stimulation do to the heart rate? - correct answer ✔✔increase
what does parasympathetic stimulation do to the heart rate? - correct answer ✔✔decrease
, the period immediately following the firing of a nerve fiber when it cannot be stimulated no
matter how great a stimulus is applied - correct answer ✔✔absolute refractory period
during the ventricular cardiac cycle when all cardiac cells are not fully repolarized and a strong
enough stimulus can excite cardiac tissue and initiate arrhythmias - correct answer ✔✔relative
refractory period
When is the relative refractory period of the ventricles? - correct answer ✔✔last half of t wave
how much time is one large box in an ecg strip? - correct answer ✔✔.20 secs
how much time is one small box in an ecg strip? - correct answer ✔✔.04 secs
normal range of PR interval - correct answer ✔✔0.12-0.20
normal range of QRS complex - correct answer ✔✔0.04-0.12
what is the normal time of the QT? - correct answer ✔✔less than 1/2 the preceding R-R interval
how do you measure the atrial rate? - correct answer ✔✔p to p
how do you measure the ventricular rate? - correct answer ✔✔R to R
- correct answer ✔✔sinus rhythm
- correct answer ✔✔sinus bradycardia
QUESTIONS & CORRECT ANSWERS
100%
the major pacemaker of the heart - correct answer ✔✔SA node
inherent rate of the SA node - correct answer ✔✔60-100
inherent rate of the AV node - correct answer ✔✔40-60
inherent rate of the ventricles (purkinjie fibers) - correct answer ✔✔20-40
phase of contraction - correct answer ✔✔systole
phase of relaxation - correct answer ✔✔diastole
what does atrial depolarization show on the ECG? - correct answer ✔✔p wave
what does ventricle depolarization show on the ECG? - correct answer ✔✔QRS complex
what does repolarization show on the ECG? - correct answer ✔✔T wave
what does sympathetic stimulation do to the heart rate? - correct answer ✔✔increase
what does parasympathetic stimulation do to the heart rate? - correct answer ✔✔decrease
, the period immediately following the firing of a nerve fiber when it cannot be stimulated no
matter how great a stimulus is applied - correct answer ✔✔absolute refractory period
during the ventricular cardiac cycle when all cardiac cells are not fully repolarized and a strong
enough stimulus can excite cardiac tissue and initiate arrhythmias - correct answer ✔✔relative
refractory period
When is the relative refractory period of the ventricles? - correct answer ✔✔last half of t wave
how much time is one large box in an ecg strip? - correct answer ✔✔.20 secs
how much time is one small box in an ecg strip? - correct answer ✔✔.04 secs
normal range of PR interval - correct answer ✔✔0.12-0.20
normal range of QRS complex - correct answer ✔✔0.04-0.12
what is the normal time of the QT? - correct answer ✔✔less than 1/2 the preceding R-R interval
how do you measure the atrial rate? - correct answer ✔✔p to p
how do you measure the ventricular rate? - correct answer ✔✔R to R
- correct answer ✔✔sinus rhythm
- correct answer ✔✔sinus bradycardia
