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Delmars Comprehensive Medical Assisting 4th Edition Lindh Pooler Tamparo Dahl Test Bank

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Delmars Comprehensive Medical Assisting 4th Edition Lindh Pooler Tamparo Dahl Test Bank

ISBN-13: 978-1435419148

ISBN-10: 1435419146

 

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Delmars Comprehensive Medical Assisting 4th Edition Lindh Pooler Tamparo Dahl Test Bank

ISBN-13: 978-1435419148

ISBN-10: 1435419146

 

 

 

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Free Nursing Test Questions:

CHAPTER 37—ELECTROCARDIOGRAPHY

 

MULTIPLE CHOICE

 

  1. Which of the following best describes an electrocardiogram?
a. performed on every adult patient over 40
b. visualization of the heart’s activity
c. graphic representation of the heart’s electrical activity
d. only indicated when patients have symptoms

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1068

NAT:  ABHES: MA.A.1.3.c, 9.o.(1); CAAHEP: I.P.5, IV.P.3

 

  1. Where does deoxygenated blood enter the heart?
a. pulmonary artery c. right atrium
b. pulmonary vein d. right ventricle

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1068

NAT:  ABHES: MA.A.1.2.b, 9.o.(1); CAAHEP: I.C.1-5, I.P.5

 

  1. Which of the following best describes the electrical conduction system of the heart?
a. A-V node to bundle of His c. A-V node to Purkinje fibers
b. S-A node to left bundle branches d. S-A node to Purkinje fibers

 

 

ANS:  D                    PTS:   1                    DIF:    Easy               REF:   Page 1068 | Page 1069

NAT:  ABHES: MA.A.1.2.b, 9.o.(1); CAAHEP: I.C.1-5, I.P.5

 

  1. Which of the following best describes what the P wave represents?
a. atrial depolarization c. atrial repolarization
b. ventricular depolarization d. ventricular repolarization

 

 

ANS:  A                    PTS:   1                    DIF:    Moderate        REF:   Page 1069

NAT:  ABHES: MA.A.1.2.b, 9.o.(1); CAAHEP: I.C.1-5, I.P.5

 

  1. Which of the following indicates ventricular depolarization?
a. P wave
b. PR segment
c. ST segment
d. QT interval
e. QRS complex

 

 

ANS:  E                    PTS:   1                    DIF:    Moderate        REF:   Page 1069

NAT:  ABHES: MA.A.1.2.b, 9.o.(1); CAAHEP: I.C.1-5, I.P.5

 

  1. Which of the following converts cardiac arrhythmia into normal sinus rhythm ?
a. ventricular fibrillation c. noninvasive Holter monitor
b. cardioversion d. none of the above

 

 

ANS:  B                    PTS:   1                    DIF:    Moderate        REF:   Page 1085

NAT:  ABHES: MA.A.1.2.b, 9.o.(1); CAAHEP: I.C.1-5, I.P.5

 

  1. Which of the following electrodes is not used as part of the recording?
a. RA c. LA
b. RL d. LL

 

 

ANS:  B                    PTS:   1                    DIF:    Easy               REF:   Page 1075

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following best describes how the augmented leads are recorded?
a. before the bipolar c. after the bipolar leads
b. after the precordial leads  

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1075 | Page 1076

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Where is the lead for a V6 reading placed?
a. fourth intercostals space at right sternal margin
b. fifth intercostals space at midclavicular line
c. horizontal to V4 at left anterior axillary line
d. horizontal to V4 at left mid axillary line

 

 

ANS:  D                    PTS:   1                    DIF:    Moderate        REF:   Page 1076 | Page 1077

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following best describes the function of standardization of the EKG machine?
a. to set machine timing
b. to determine whether the machine is set and working properly
c. to check for artifacts
d. to determine the correct placement of chest electrodes

 

 

ANS:  B                    PTS:   1                    DIF:    Easy               REF:   Page 1078

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Why should the ECG tracing be performed in a quiet, warm exam room away from electrical equipment?
a. Wandering baseline is reduced.
b. Patient is able to sleep.
c. Artifacts are reduced.
d. Transmission of microorganisms is minimized.

 

 

ANS:  C                    PTS:   1                    DIF:    Easy

REF:   Page 1079 |Page 1080 | Page 1090    NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Why are electrodes applied to the fleshy part of a limb?
a. to reduce AC interference c. to prevent interrupted baseline
b. to correct wandering baseline d. to minimize artifacts

 

 

ANS:  D                    PTS:   1                    DIF:    Moderate        REF:   Page 1090

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. What is the next step in the ECG procedure after the electropad sensors are removed?
a. Assist the patient as needed. c. Unplug the machine.
b. Turn the machine off. d. Give tracing to the physician.

 

 

ANS:  A                    PTS:   1                    DIF:    Easy               REF:   Page 1092

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following is the lead that records electrical activity between the right arm and the left leg?
a. Lead I
b. AVL
c. AVF
d. Lead II
e. Lead III

 

 

ANS:  D                    PTS:   1                    DIF:    Moderate

REF:   Page 1075 | Page 1076| Page 1077    NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following tests requires injecting the patient with a radioactive substance?
a. echocardiogram c. coronary artery bypass
b. electrocardiogram d. thallium stress test

 

 

ANS:  D                    PTS:   1                    DIF:    Easy               REF:   Page 1088

NAT:  ABHES: MA.A.1.9.m; CAAHEP: I.P.10

 

  1. Which of the following is a true statement about ventricular tachycardia?
a. occurs in healthy people c. has a cardiac cycle occurring early
b. often seen in patients using depressants d. is life threatening

 

 

ANS:  D                    PTS:   1                    DIF:    Easy               REF:   Page 1084

NAT:  ABHES: MA.A.1.2.b, 9.o.(1); CAAHEP: I.C.1-5, I.P.5

 

  1. Which of the following is an important part of the patient education when preparing a patient to wear a Holter monitor?
a. Wear it even in the shower for an accurate reading.
b. Remove the recorder from its case.
c. Keep a diary of the times of all symptomatic activities and emotions.
d. Depress the event marker every hour on the half hour.

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1086 | Page 1087

NAT:  ABHES: MA.A.1.9.q; CAAHEP: IV.P.6

 

  1. Which of the following is not true about Holter monitor electrodes?
a. They are disposable.
b. Electrodes contain an electrolyte gel.
c. There are only 6–7 electrodes used.
d. The electrodes are applied in different locations than a resting ECG.

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1086

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following is an example of an artifact caused by electrical interference?
a. patient sneeze c. AC interference
b. patient cough d. DC interference

 

 

ANS:  C                    PTS:   1                    DIF:    Moderate        REF:   Page 1079

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following artifacts can be caused by poor quality of electrolyte gel?
a. voluntary muscle movement c. somatic tremor
b. alternating current d. wandering baseline

 

 

ANS:  D                    PTS:   1                    DIF:    Easy               REF:   Page 1080

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Why would the medical assistant place the power cord pointing away from the patient and not allow the cable to go underneath the table?
a. causes interrupted baseline c. helps reduce wandering baseline
b. helps reduce AC interference d. causes somatic tremor artifacts

 

 

ANS:  B                    PTS:   1                    DIF:    Easy               REF:   Page 1090

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following is true about a treadmill stress test?
a. is an invasive ECG tracing
b. taken under uncontrolled conditions
c. monitored closely by the provider
d. electrodes are applied to the arms, chest, and legs

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1087

NAT:  ABHES: MA.A.1.9.q; CAAHEP: IV.P.6

 

  1. Which of the following is a reason to have an EKG?
a. detects myocardial ischemia
b. estimates damage from MI
c. evaluates arrhythmia
d. assesses cardiac medication on the heart
e. all the above

 

 

ANS:  E                    PTS:   1                    DIF:    Moderate        REF:   Page 1068

NAT:  ABHES: MA.A.1.9.q; CAAHEP: IV.P.6

 

  1. What is the name of the body’s natural pacemaker?
a. medulla c. SA node
b. AV node d. bundle branches

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1068

NAT:  ABHES: MA.A.1.3.c; CAAHEP: IV.P.3

 

  1. What does the cardiac cycle represent?
a. contraction of the atria c. relaxation of the entire heart
b. one heartbeat d. contraction of the ventricles

 

 

ANS:  B                    PTS:   1                    DIF:    Easy               REF:   Page 1069

NAT:  ABHES: MA.A.1.2.b; CAAHEP: I.C.1-5

 

  1. Which of the following best describes the contraction of the cardiac cells, from the electrical discharge?
a. repolarization c. depolarization
b. negative deflection d. polarization

 

 

ANS:  C                    PTS:   1                    DIF:    Moderate        REF:   Page 1068

NAT:  ABHES: MA.A.1.2.b; CAAHEP: I.C.1-5

 

  1. Which of the following describes when the myocardial cells recovers electrically?
a. repolarization c. depolarization
b. negative deflection d. polarization

 

 

ANS:  A                    PTS:   1                    DIF:    Moderate        REF:   Page 1069

NAT:  ABHES: MA.A.1.2.b; CAAHEP: I.C.1-5

 

  1. Which of the following best describes electrocardiograph paper?
a. light-sensitive c. heat-sensitive
b. chemically sensitive d. moisture-sensitive

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1074

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. If the electrocardiograph is properly standardized, the standardization mark should be how high?
a. 5 mm c. 15 mm
b. 10 mm d. 20 mm

 

 

ANS:  B                    PTS:   1                    DIF:    Easy               REF:   Page 1078

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. The standard electrocardiogram shows the heart’s electrical activity from different angles through “leads.” How many leads are recorded?
a. 5 c. 10
b. 7 d. 12

 

 

ANS:  D                    PTS:   1                    DIF:    Easy               REF:   Page 1075

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following is a device placed on the skin that picks up electrical impulses given off by the heart?
a. lead wire c. electrode
b. amplifier d. electrolyte

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1075

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Why should an electrolyte be used when running an ECG?
a. The skin is a poor conductor of electricity.
b. An electrolyte reduces the amount of dryness of the skin.
c. An electrolyte protects the patient from shocks generated by the electrocardiograph.
d. An electrolyte amplifies the electrical impulses coming from the heart.

 

 

ANS:  A                    PTS:   1                    DIF:    Moderate        REF:   Page 1074

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following best describes Leads I, II, and III?
a. bipolar leads c. augmented leads
b. chest leads d. precordial leads

 

 

ANS:  A                    PTS:   1                    DIF:    Easy               REF:   Page 1075

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following is not a characteristic of a three-channel or multi-channel electrocardiogram?
a. The tracing is recorded on 8 1/2 by 11 inch paper.
b. Three or more leads are recorded at one time.
c. It fits into a patient chart with no cutting or mounting.
d. Speed is an advantage.
e. It records one lead at a time

 

 

ANS:  E                    PTS:   1                    DIF:    Moderate        REF:   Page 1073

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following would not result in somatic tremor artifact?
a. patient discomfort c. improper grounding of the ECG machine
b. an apprehensive patient d. patient coughing or talking

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1079

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following occurs if the metal tip of a lead wire becomes detached from an electrode?
a. alternating current artifacts c. wandering baseline
b. muscle artifacts d. interrupted baseline

 

 

ANS:  D                    PTS:   1                    DIF:    Moderate        REF:   Page 1080

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following represents an error in technique when running an electrocardiogram?
a. positioning the machine so that the power cord runs under the patient table
b. beginning application of electrodes on the patient’s left side
c. instructing the patient to lie still and not to talk during the procedure
d. positioning the limb electrodes on the fleshy part of the upper arms and lower legs

 

 

ANS:  A                    PTS:   1                    DIF:    Easy

REF:   Page 1090 | Critical Thinking           NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. Which of the following would not need to be recorded in the Holter monitor patient activity diary?
a. eating meals
b. medications taken
c. bowel movements
d. times of sleep
e. name of nearest relative

 

 

ANS:  E                    PTS:   1                    DIF:    Easy               REF:   Page 1087

NAT:  ABHES: MA.A.1.9.q; CAAHEP: IV.P.6

 

  1. What is the term used to refer to an ECG reading that is within normal limits?
a. sinus arrhythmia c. normal sinus rhythm
b. baseline recording d. atrial fibrillation

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1082

NAT:  ABHES: MA.A.1.9.o.(1); CAAHEP: I.P.5

 

  1. During a coronary balloon angioplasty, a catheter with a deflated balloon is inserted into which of the following arteries?
a. carotid c. femoral
b. brachial d. radial

 

 

ANS:  C                    PTS:   1                    DIF:    Easy               REF:   Page 1089

NAT:  ABHES: MA.A.1.2.b; CAAHEP: I.C.1-5

 

  1. Which of the following procedures involves taking a portion of a vein (typically the Saphenous) and transplanting it into one or more of the hearts’ coronary arteries?
a. atherectomy c. coronary angioplasty
b. laser angioplasty d. coronary artery bypass

 

 

ANS:  D                    PTS:   1                    DIF:    Easy               REF:   Page 1089

NAT:  ABHES: MA.A.1.2.b; CAAHEP: I.C.1-5

 

  1. Which of the small devices sends a small dose of electricity to jar the heart back into a normal rhythm?
a. pacemaker d. CMR
b. ICD e. ECG
c. CCT  

 

 

ANS:  B                    PTS:   1                    DIF:    Easy               REF:   Page 1089

NAT:  ABHES: MA.A.1.2.b; CAAHEP: I.C.1-5

 

  1. Which of the following atrial arrhythmia is characterized by extremely rapid incomplete contractions?
a. premature atrial contraction c. atrial fibrillation
b. paroxysmal atrial tachycardia d. sinus bradycardia

 

 

ANS:  C                    PTS:   1                    DIF:    Moderate        REF:   Page 1082 | Page 1083

NAT:  ABHES: MA.A.1.2.b, 9.o.(1); CAAHEP: I.C.1-5, I.P.5

 

  1. Which of the following ventricular arrhythmia is considered a common disturbance in the rhythm?
a. premature ventricular contraction c. ventricular tachycardia
b. ventricular fibrillation d. none of the above

 

 

ANS:  A                    PTS:   1                    DIF:    Moderate        REF:   Page 1083

NAT:  ABHES: MA.A.1.2.b, 9.o.(1); CAAHEP: I.C.1-5, I.P.5

 

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