RMA chapter #20

The medical term meaning transmission of ECG signals via radio waves is
A. telepathy
B. telediagnosis
C. telemetry
D. telecardio
E. telocentric

On an ECG tracing, an indecation of the absence of electrical charge or activity represents
A. sinoatrial node
B. QRS complex
C. baseline
D. repolarization
E. none of the above

A beat arising from a focus outside the heart is know as
A. uncontrolled beat
B. fusion beat
C. ectopic beat
D. bigeminy
E. escape beat

Which of the following is the epicardium?
A. heart wall
B. right atruim
C. heart muscle
D. outermost layer of the heart
E. inner lining of the myocardium

The sudden rush of blood pushed into the ventricles as a result of atrial contration is know as
A. atrial kick
B. acardia
C. apec kick
D. repolarization
E. ventricular contration

The U wave represents
A. ectopic beat
B. depolarization
C. baseline
D. contraction
E. repolarization

Which of the following is not necessary in administrating an ECG?
A. sterilizing the leads
B. activating the stardardization control
C. washing the patient's skin
D. selecting the speed
E. both B and D

Which type id lead is lead III?
A. bipolar limb lead
B. unipolar (augmented) limb lead
C. precordial lead
D. intercestal lead
E. none of the above

Which of the following is represented by the Q-T interval?
A. repolarization of the atria
B. low potassium in the blood
C. one ventricular contraction and recovery (repolarization)
D. the depolarization of the atria
E. unusually frequent articular contraction due to high blood sugar

Leads aVR, aVL, and aVF are
A. standard leads
B. limb leads
C. intercoastal leads
D. augmented leads
E. Both B and D

Sucessful depolarization if the atria or ventricles by an artificial pacemaker is called
A. cardioplasty
B. capture
C. atrial kick
D. apex kick
E. none of the above

All of the following are causes of artifacts except
A. improper handling of a tracing
B. outside interference
C. a patient's talking
D. clean sensors
E. poor conduction

Augmented leads are also called
A. standard leads
B. bipolar leads
C. unipolar leads
D. nonstandard leads
E. none of the above

The QRS complex represents
A. contraction of the heart
B. recovery of the atria
C. recovery of the ventricles
D. contraction of the atria
E. contaction of the ventricles

The coronary sinus empties into the
A. left atruim
B. right atruim
C. left ventricle
D. right ventricle
E. both B and D

The medical term meaning a falling or drooping of the heart is
A. cardiomyopexy
B. cardiomyopathy
C. cardiolith
D. cardioplegia
E. cardioptosis

Which of the following is the measurement of the atrial rate on the ECG tracing?
A. the PR intercals
B. the P waves
C. the R waves
D. the QRS complex
E. none of the above

Lead II is a (n)
A. chest or precordial leads
B. bipolar limb lead
C. augmented or unipolar limb lead
D. intercoastal lead
E. none of the above

The heart's conduction system is measured by which of the following?
A. angiography
B. echocardiography
C. exercise electrocardiography
D. action potential
E. heart catheterization

Which of the patient's limbs serves as an electrical ground?
A. right leg
B. left arm
C. right arm
D. left leg
E. either arm

Depolarization of fast cells is dependent on which of the following electrolytes?
A. potassiom
B. magnesium
C. calcium
D. chloride
E. sodium

Which of the following devices may deliver a samll amount of electrical energy to cause myocardial depolarization?
A. oscilloscope
B. electrocardiography
C. treadmill
D. holter monitor
E. electronic pacemaker