ECG Study Questions
- 1.
WHICH OF THE FOLLOWING IS A CHARACTERISTIC OF ARTERIES
- A.
CARRY BLOOD BACK TOWARD THE HEART
- B.
DELIVER DEOXYGENATED BLOOD INTO VENULES VIA ARTERIES
- C.
HAS LOWER PRESSURE THAN VEINS
- D.
SUPPLY TISSUES WITH OXYGEN AND NUTRIENTS
Correct Answer
D. SUPPLY TISSUES WITH OXYGEN AND NUTRIENTS -
- 2.
WHICH OF THE FOLLOWING IS A CHARACTERISTIC OF VEINS
- A.
CARRY BLOOD AWAY FROM THE HEART
- B.
CONTAINS VALVES TO PREVENT BACK FLOW
- C.
DELIVER OXYGENATED BLOOD INTO VENULES VIA CAPPILARIES
- D.
HAVE STRONGER AND THICKER WALL THAN ARTERIES
Correct Answer
B. CONTAINS VALVES TO PREVENT BACK FLOW -
- 3.
CAPILLARIES ARE ABSENT FROM WHICH ONE OF THE FOLLOWING ANATOMIC LOCATION
- A.
CORNEAS
- B.
EARS
- C.
FINGERS
- D.
LIPS
Correct Answer
A. CORNEAS -
- 4.
WHICH CHAMBER OF THE HEART PUMPS BLOOD TO THE LUNGS
- A.
LEFT ATRIUM
- B.
LEFT VENTRICLE
- C.
RIGHT ATRIUM
- D.
RIGHT VENTRICLE
Correct Answer
D. RIGHT VENTRICLE -
- 5.
WHICH OF THE FOLLOWING IS CONSIDERED A NORMAL BLOOD PRESSURE
- A.
114/78
- B.
132/70
- C.
113/96
- D.
148/90
Correct Answer
A. 114/78 -
- 6.
WHEN LISTENING TO THE HEART WITH A STETHOSCOPE, THE "LUB- DUB" SOUND HEARD IS FROM
- A.
BLOOD ENTERING THE AORTA FROM THE LEFT VENTRICLE
- B.
BLOOD RUSHING LEFT TO RIGHT ACROSS THE SEPTUM
- C.
LEAFLETS OF THE HEART VALVES SLAPPING TOGETHER
- D.
VENTRICLES PUMPING BLOOD INTO THE PULMONARY VEIN
Correct Answer
C. LEAFLETS OF THE HEART VALVES SLAPPING TOGETHER -
- 7.
WHICH OF THE FOLLOWING STATEMENT IS TRUE REGARDING THE CARDIAC CYCLE
- A.
DIASTOLE BEGINS WHEN THE HEART CHAMBERS CONTRACT
- B.
SYSTOLE BEGINS WHEN THE ATRIA CONTRACT TO MOVE BLOOD
- C.
AS SYSTOLE BEGINS, BLOOD POURS FROM THE VEIN INTO THE VENTRICLES
- D.
THE SEMI-LUNAR VALVE CLOSE TO PREVENT BLOOD FROM FLOWING INTO ATRIA
Correct Answer
B. SYSTOLE BEGINS WHEN THE ATRIA CONTRACT TO MOVE BLOOD -
- 8.
WHICH OF THE FOLLOWING STAtEMENT IS TRUE REGARDING ELECTRICAL CONDUCTION OF THE HEART
- A.
MYOCARDIAL CELLS CONTRACT WHEN STIMULATED BY ELECTRICAL SIGNALS FROM PACEMAKER CELLS
- B.
PACEMAKER CELLS IN THE SINO ATRIAL NODE GENERATE ELECTRICAL SIGNALS THAT CAUSE THE HEART TO CONTRACT
- C.
THE BUNDLE OF HIS ALLOWS ELECTRICAL SIGNALS FROM THE ATRIA TO MOVE TO THE VENTRICLES
- D.
TRANSMISSION OF THE ELECTRICAL IMPULSE FROM THE SA NODES TO THE VENTRICLES IS CALLED REPOLARIZATION
Correct Answer
D. TRANSMISSION OF THE ELECTRICAL IMPULSE FROM THE SA NODES TO THE VENTRICLES IS CALLED REPOLARIZATION -
- 9.
WHICH IS NOT A PART OF THE ELECTROCARDIOGRAPHY MACHINE
- A.
RECORDERS THAT GRAPHICALLY RECORD ELECTRICAL SIGNALS
- B.
ELECTRODES THAT TRANSMIT ELECTRICAL SIGNALS FROM THE HEART TO THE CABLES
- C.
CABLES THAT SPLITS INTO INDIVIDUAL LEAD WIRES
- D.
AMPLIFIER TO INCREASE ELECTRICAL SIGNAL STRENGTH
Correct Answer
B. ELECTRODES THAT TRANSMIT ELECTRICAL SIGNALS FROM THE HEART TO THE CABLES -
- 10.
THE SMALLEST SQUARE ON THE ELECTRICARDIGRAPH PAPER IS
- A.
1MM*1MM
- B.
1CM*1CM
- C.
5MM*5MM
- D.
5CM*5CM
Correct Answer
A. 1MM*1MM -
- 11.
A 12 LEAD ECG IS CALLED SO BECAUSE
- A.
ELECTRODES CAN BE ATTACHED IN 12 DIFFERENT LOCATIONS
- B.
IT RESULTS IN 12 ELECTRONIC VIEW OF THE HEART
- C.
THE PROCEDURE TAKES TWELVE SECONDS
- D.
TWELVE LEADS ARE ATTACHED TO THE PATIENT
Correct Answer
B. IT RESULTS IN 12 ELECTRONIC VIEW OF THE HEART -
- 12.
WHAT IS THE COLOR CODE FOR LEFT LEG LEAD
- A.
BLACK
- B.
GREEN
- C.
RED
- D.
WHITE
Correct Answer
C. RED -
- 13.
WHAT IS THE COLOUR CODE FOR THE RIGHT ARM LEAD
- A.
BLACK
- B.
GREEN
- C.
WHITE
- D.
RED
Correct Answer
C. WHITE -
- 14.
WHERE IS A BLUE COLOUR CODE LEAD PLACED
- A.
4TH INTERCOSTAL SPACE, RIGHT BORDER OF STERNUM
- B.
5TH INTERCOSTAL SPACE, LEFT MID CLAVICULAR LINE
- C.
ANTERIOR AXILLARY LINE. PARALLEL TO V2
- D.
MID AXILLARY LINE, SAME LEVEL AS V4 AND V5
Correct Answer
B. 5TH INTERCOSTAL SPACE, LEFT MID CLAVICULAR LINE -
- 15.
WHAT IS THE COLOR CODE FOR V6
- A.
GREEN
- B.
ORANGE
- C.
PURPLE
- D.
YELLOW
Correct Answer
C. PURPLE -
- 16.
WHICH OF THE FOLLOWING LEAD VIEW IS USEFUL FOR INFERIOR WALL MYOCARDIUM INFARCTION
- A.
LEAD 1
- B.
LEAD 11
- C.
LEAD 1 AND LEAD 11
- D.
LEAD 111
Correct Answer
C. LEAD 1 AND LEAD 11 -
- 17.
WHICH OF THE FOLLOWING IS A FALSE STATEMENT REGARDING TO PATIENT PREPARATION FOR AN ECG PROCEDURE
- A.
BEFORE APPLYING ELECTRODE,ALCOHOL WIPES SHOULD BE USED TO REMOVE SKIN OILS, LOTION, SOAPS, ETC. FROM THE PATIENT SKIN
- B.
IT MAY BE NECESSARY TO SHAVE THE BODY HAIR TO ASSURE GOOD ADHERENCE OF THE ELECTRODES
- C.
ELECTRODES SHOULD BE PLACED UNDER A WOMANS BREAST AND NOT ON TOP OF THEM
- D.
ELECTRIDES SHOULD BE PLACED ON THE TOP OF PANTYHOSE AND NOT UNDERNEATH THEM
Correct Answer
D. ELECTRIDES SHOULD BE PLACED ON THE TOP OF PANTYHOSE AND NOT UNDERNEATH THEM -
- 18.
STANDARD ECG SPEED IS
- A.
5MM PER MINUTE
- B.
25MM PER SECOND
- C.
25MM PER MINUTE
- D.
5MM PER SECOND
Correct Answer
B. 25MM PER SECOND -
- 19.
STANDARD ECG CALIBRATION IS
- A.
1MM TO 1MV
- B.
1MM TO 1HZ
- C.
10MM TO 1MV
- D.
10MM TO 1HZ
Correct Answer
C. 10MM TO 1MV -
- 20.
IN A NORMAL ECG, WHICH ONE OF THE FOLLOWING WAVES IS A NEGATIVE DEFLECTION?
- A.
P
- B.
R
- C.
S
- D.
T
Correct Answer
C. S -
- 21.
THE Q WAVE REPRESENTS
- A.
ACTIVATION OF THE INTRAVENTRICULAR SEPTUM
- B.
DEPOLARIZATION AND REPOLARIZATON OF THE VENTRICLE
- C.
NORMAL DEPOLARIZATION OF THE RIGHT AND LEFT ATRIA
- D.
VENTRICULAR PEPOLARIZATION STAGE
Correct Answer
C. NORMAL DEPOLARIZATION OF THE RIGHT AND LEFT ATRIA -
- 22.
WHICH SET OF LEADS ARE BIPOLAR
- A.
STANDARD LIMB LEADS
- B.
AUGMENTED LEADS
- C.
PRECORDIAL LEADS
- D.
ALL LEADS ARE BIPOLAR
Correct Answer
A. STANDARD LIMB LEADS -
- 23.
THE PR INTERVAL IS THE TIME BETWEEN
- A.
THE BEGINNING OF THE P WAVE TO THE END OF THE R WAVE
- B.
THE END OF THE P WAVE TO THE END OF THE R WAVE
- C.
THE BEGINNING OF THE P WAVE TO THE BEGINNING OF THE Q WAVE
- D.
THE END OF THE P WAVE TO THE END OF THE Q WAVE
Correct Answer
C. THE BEGINNING OF THE P WAVE TO THE BEGINNING OF THE Q WAVE -
- 24.
Which of the following are associated with wolf parkinson white syndrome
- A.
Fainting
- B.
Shortened PR
- C.
Sudden cardiac arrest
- D.
All of the above
Correct Answer
D. All of the above -
- 25.
If they are 18 mm boxes between two qrs complex, what is the heart rate in bpm
- A.
12
- B.
52
- C.
83
- D.
97
Correct Answer
C. 83 -
- 26.
Which of the following is a criteria used to determine if a heart rate is regular
- A.
Intervals between P waves must be the same
- B.
Heart rate must be between 60 and 80 bpm
- C.
P wave must follow the QRS complexes
- D.
P wave must be higher than 2.5mm in leads 11 and 111
Correct Answer
A. Intervals between P waves must be the same -
- 27.
Which of the following would negatively affect the accuracy of an ECG
- A.
Calibration of 15mm to 1mv
- B.
Correct lead placement
- C.
Paper speed of 25mm per second
- D.
Use of diagnostic frequency response
Correct Answer
A. Calibration of 15mm to 1mv -
- 28.
Incorrect placement of electrodes may reslt in ----------------on thw ECG tracing
- A.
Baseline interruption
- B.
Somatic tremor
- C.
Waveform interference
- D.
Weak signal
Correct Answer
D. Weak signal -
- 29.
A loose prong on the ECG machine electrical plug could result in which of the following artifacts
- A.
Alternative current
- B.
Baseline interruption
- C.
Somatic tremor
- D.
Weak signal
Correct Answer
A. Alternative current -
- 30.
What can cause somatic tremor
- A.
Poor electrode/ lead wire connection
- B.
Loosening of a connection between an electrode and lead wire
- C.
Electrical interference from other equipment in the room
- D.
Patient has high fever and chills
Correct Answer
D. Patient has high fever and chills -
- 31.
If you see base line wandering while performing an ecg what should you do
- A.
Check for loose prongs on the electrical plug
- B.
Ask the patient to remain still
- C.
Reapply the electrodes
- D.
Turn off other machines in area
Correct Answer
B. Ask the patient to remain still -
- 32.
Which abnormalties whould you see in and ecg with a myocardial infarction
- A.
Pathologic Q waves
- B.
Increased R waves
- C.
Decreased ST segment
- D.
All of the above
Correct Answer
A. Pathologic Q waves -
- 33.
Very narrow qrs complexes are seen in which of the following
- A.
Asystole
- B.
Atrial flutter
- C.
Atrial fibrillation
- D.
Ventricular fibrillation
Correct Answer
B. Atrial flutter -
- 34.
If the absence of a P wave and an odd QRS complexes are seen, what would this indicate
- A.
Sinus tachycardia
- B.
Ventricular tachycardia
- C.
Atrial flutter
- D.
Asystole
Correct Answer
B. Ventricular tachycardia -
- 35.
What is the definition of ischemia
- A.
Bacterial infection surrounding the heart
- B.
Backward flow of blood caused by a defective heart valve
- C.
Narrowing or constriction of a cardiac blood vessel or valve
- D.
Decreased flow of oxygenated blood due to an arterial obstruction
Correct Answer
D. Decreased flow of oxygenated blood due to an arterial obstruction -
- 36.
The condition in which the heart"s electriacal system is unable to normally conduct an electrical signal is calles a/an
- A.
Aneurysm
- B.
Bundle-branch block
- C.
Claudication
- D.
Mitral valve prolapse
Correct Answer
B. Bundle-branch block -
- 37.
Which of the following is a drug that dissolves blood clots
- A.
Angiotensin
- B.
Calcium channel blocker
- C.
Nitroglycerin
- D.
Steptokinase
Correct Answer
D. Steptokinase -
- 38.
Which of the following is the term for rapid heart beat
- A.
Bradycardia
- B.
Angina
- C.
Tachycardia
- D.
Syncope
- E.
Dyspnea
Correct Answer
C. Tachycardia -
- 39.
Which of the followingis responsible for regulating the cardiac electrical current
- A.
Av node
- B.
Blood pressure
- C.
Endocardium
- D.
Myocardium
Correct Answer
A. Av node -
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