Practice Exam Flashcards
Improper grounding of the ECG during set-up is most likely to result in:
A. muscle artifact.
B. wandering baseline artifact.
C. alternating current artifact.
D. somatic tremor artifact.
C. alternating current artifact.
While obtaining vitals on an infant, how is the heart rate measured?
A. Palpate the radial pulse for 60 seconds.
B. Auscultate the apical pulse for 60 seconds.
C. Auscultate the brachial pulse for 60 seconds.
D. Palpate the femoral pulse for 60 seconds.
B. Auscultate the apical pulse for 60 seconds.
Which of the following should the ECG technician do to correct wave sets that are too close
together to be accurately analyzed?
A. Increase the running speed of the ECG machine to 50 mm/sec.
B. Decrease the running speed of the ECG machine to 12.5 mm/sec.
C. Increase the sensitivity of the machine to 20 mm/mv.
D. Decrease the sensitivity of the machine to 10 mm/mv.
A. Increase the running speed of the ECG machine to 50 mm/sec.
Which of the following should the ECG technician do with a patient on contact precautions?
Select the three (3) correct answers.
A. Wash hands.
B. Wear eye protection.
C. Avoid contaminated surfaces.
D. Disinfect all equipment.
E. Wear a mask.
A. Wash hands.
C. Avoid contaminated surfaces.
D. Disinfect all equipment.
The physician orders an ECG on a patient with severe burns on his left arm. Which of the following alternate placements should the ECG technician use?
A. all upper limb leads symmetrically placed as close to the original site as possible
B. all upper limb leads placed substernally at the acromion process
C. left upper limb lead placed as close to the original site as possible
D. left upper limb lead placed substernally at the acromion process
A. all upper limb leads symmetrically placed as close to the original site as possible
Which of the following occurs when a singular irritable impulse fires so rapidly it bombards the AV node, causing V shaped or upside down V shaped waves?
A. ventricular flutter
B. atrial flutter
C. ventricular tachycardia
D. atrial tachycardia
B. atrial flutter
When performing an ECG on a pregnant woman in her third trimester the ECG technician should place the…
A. lower limb leads on the patient’s ankles.
B. patient on her right side and lower limb leads on the lower abdomen.
C. lower limb leads on the patient’s side.
D. patient on her left side and lower limb leads on her upper thighs.
D. patient on her left side and lower limb leads on her upper thighs.
While monitoring a stress test on a 56-year-old male, the ECG technician should stop the test when the…
A. patient’s heart rate reaches 100.
B. technician sees that the patient is starting to sweat.
C. patient has completed three stages of the test.
D. physician recognizes asymptomatic heart rhythm changes.
D. physician recognizes asymptomatic heart rhythm changes.
On an ECG strip for a patient with a pacemaker, if there are pacing spikes present and there is
no atrial or ventricular depolariztion, the ECG technician should recognize which of the following
pacemaker complications?
A. malsensing
B. misfiring
C. loss of capture
D. oversensing
C. loss of capture
If the arm limb electrodes are reversed on the patient, where on the ECG tracing will this change be depicted?
A. I and AVR
B. I and AVL
C. II and AVL
D. II and AVF
A. I and AVR
Which of the following are characteristic of premature atrial contractions (PACs)?
Select the three (3) correct answers.
A. Atrial and ventricular rates are different.
B. P waves are the same shape and configuration.
C. PR interval measures are within normal limits (0.12-0.20).
D. Rhythm will be regular with occasional early complexes.
E. QRS complexes remain within normal limits (0.06-0.10).
C. PR interval measures are within normal limits (0.12-0.20).
D. Rhythm will be regular with occasional early complexes.
E. QRS complexes remain within normal limits (0.06-0.10).
Which of the following is a typical characteristic of a Premature Atrial Contraction (PAC)?
A. two P waves for one QRS complex
B. PR interval within normal limits
C. PR interval follows the underlying rhythm
D. QRS duration and configuration wide and bizarre with T wave in opposite direction
A. two P waves for one QRS complex
ST segment depression with T wave inversion indicates which of the following arrhythmias?
A. first degree heart block
B. hemiblock
C. bundle branch block
D. AV block
C. bundle branch block
Which of the following instructions should be given to patients prior to stress testing?
Select the two (2) correct answers.
A. Wear comfortable clothes, including athletic shoes.
B. No food or drink is allowed after midnight prior to the test.
C. Refrain from alcohol, tobacco and caffeine 48 hours prior to the test.
D. Take all prescribed medications two hours prior to the test.
E. Eat a light meal two hours prior to the test.
A. Wear comfortable clothes, including athletic shoes.
E. Eat a light meal two hours prior to the test.
A somatic tremor on an ECG strip can be identified by
A. small inverted spikes.
B. irregularly spaced, jagged peaks.
C. irregularly spaced, uniform peaks.
D. small drifting spikes.
B. irregularly spaced, jagged peaks.
