Questions and CORRECT Answers
The ECG and cardiac monitor measure - CORRECT ANSWER- ✔✔The electrical activity of
the heart
During the Contraction phase of the cardiac cycle,the heart: - CORRECT ANSWER-
✔✔Pumps blood to the body
The normal pacemaker of the heart is in the: - CORRECT ANSWER- ✔✔Right Atrium
The normal rate of the pacemaker is: - CORRECT ANSWER- ✔✔60-100 beats per a minute
Ectopic beats may occur if the normal pacemaker falls below: - CORRECT ANSWER-
✔✔50 Beats per a minute
The A-V node can pace the heartbeat at the rate of: - CORRECT ANSWER- ✔✔40-60 beats
per a minute
The part of the cardiac cycle that results in a palpable pulse is the: - CORRECT ANSWER-
✔✔Ventricular contraction
The ventricles can pace the heartbeat at a rate of: - CORRECT ANSWER- ✔✔20-40 beats
per a minute
The working phase of the cardiac cycle is: - CORRECT ANSWER- ✔✔systole
Each small block on the ECG paper represents: - CORRECT ANSWER- ✔✔.04 Seconds
Each large block on the ECG paper represents : - CORRECT ANSWER- ✔✔.20 Seconds
, The P wave represents the: - CORRECT ANSWER- ✔✔pacemaker firing
The normal PR interval is: - CORRECT ANSWER- ✔✔.12 to .20 seconds
The normal conduction time for the QRS complex is: - CORRECT ANSWER- ✔✔.06 to .10
seconds.
The T wave represents the: - CORRECT ANSWER- ✔✔Resting Phase
A condition in which the heart has many different pacemakers within the atria is: -
CORRECT ANSWER- ✔✔atrial fibrilation
An indication that the pacemaker is in the A-V junction is that the: - CORRECT ANSWER-
✔✔shape of the P waves is abnormal
When the patient is having unifocal PVC's, you know that the pacemaker is in: - CORRECT
ANSWER- ✔✔one area of the ventricles
In a patient wiht myocardial infarction, which of the following conditions can be life
threatening? - CORRECT ANSWER- ✔✔Multifocal PVC's
Ventrcular tachycardia: - CORRECT ANSWER- ✔✔must be treated immediately
A patient who is ventricular fibrillation always requries: - CORRECT ANSWER- ✔✔CPR
According to Einthoven, electrical activity in the heart is viewed in: - CORRECT ANSWER-
✔✔three dimensions
Inthe standard ECG: - CORRECT ANSWER- ✔✔12 Leads are used
The standard leads are - CORRECT ANSWER- ✔✔I, II, III