1) Which of the following positions is best for performing an EKG? a) Prone b) Supine c) Fowler’s d) Left lateral 2) Which of the following actions should be taken for a patient experiencing a somatic tremor artifact on their electrocardiogram due to uncontrolled muscle movements? a) Tie the patient’s arms to the exam table while conducting the test. b) Ask for assistance to hold the patient’s arms still while conducting the procedure. c) Clean the skin and securely tape down the electrodes on the extremities d) Have the patient lay their hands palms down under their buttocks to reduce the muscle movements 3) Which of the following places should the electrode for lead V2 be placed? a) The right leg b) The left arm c) The left side of the sternum, fourth intercostal space d) The left side of the chest, fifth intercostal space, midaxillary line 4) Which of the following places should the black limb lead be placed? a) The right leg b) The right arm c) The left leg d) The left arm 5) Which of the following actions can cause a wandering baseline artifact? a) A disconnected or broken lead wire b) A patient with lotion or cream on their skin c) The patient shaking due to anxiety d) Poor grounding of the machine 6) Which of the following artifacts is a result of patient movement with breathing? a) 60-cycle interference b) Interrupted baseline c) Wandering baseline d) Somatic tremor 7) A medical assistant notices frequent, regular spikes on the EKG tracing. Which of the following actions should the assistant take? a) Reattach the faulty electrode. b) Have the patient hold their breath for 10 seconds c) Turn off nearby electrical equipment. d) Offer the patient a warm blanket. 8) Which of the following demonstrates how somatic tremors can differentiate from 60-cycle interference? a) Somatic tremors produce an interrupted baseline. b) Somatic tremors produce irregular spikes. c) 60-cycle interference produces a wandering baseline d) 60-cycle interference produces an irregular QRS rhythm. 9) Which of the following statements made by a medical assistant demonstrates an understanding of patient privacy? a) “Please remove all clothing from the waist up and you can get dressed after the EKG is done.” b) “I’ll cover your abdomen with a blanket as soon as I’m done placing the EKG electrodes.” c) “I can turn the heat up if you’re cold as you’ll need to remain unclothed for the duration of the EKG test.” d) “You can leave all your clothes on and I’ll try to work around them to obtain the EKG.” 10) Which of the following is the correct number of electrodes needed to record a 12-lead EKG? a) 12 b) 10 c) 5 d) 6 11) Which of the following serves as a conductor of impulses during an EKG? a) Electrocardiograph b) Lead wires c) Electrolyte gel d) EKG paper 12) While preparing to record an EKG, you notice there’s a break in the baseline and the screen displays flat lines across all leads. Which of the following do you suspect? a) The patient is in asystole b) An electrical interference has occurred c) There is a disconnected lead wire. d) The patient is in ventricular fibrillation. 13) Which of the following is the duration of a standard calibration box? a) 4 seconds b) 2 second c) 0.04 seconds d) 0.2 seconds 14) Which of the following is the height of a standard calibration box? a) 20 mm b) 0.5 mm c) 15 mm d) 10 mm 15) A medical assistant is preparing to record an EKG on a patient who has a history of pulmonary disease. The patient reports shortness of breath after lying on the exam table. Which of the following actions should the medical assistant take? a) Elevate the head of the bed to 45° (semi-Fowler’s position). b) Tell the patient to hold their breath. c) Administer oxygen to the patient. d) Record the EKG with the patient standing. 16) While assisting with a cardiac stress test, the medical assistant observes the patient’s blood pressure reading is 204/108. Which of the following actions should the assistant take? a) Stop the procedure and notify the provider immediately b) Finish performing the stress test and notify the provider. c) Decrease the treadmill speed and check the electrodes. d) Administer aspirin to the patient and stop the test. 17) Which of the following differentiates sinus tachycardia from ventricular tachycardia? a) Sinus tachycardia has narrow QRS complexes. b) Ventricular tachycardia has narrow QRS complexes. c) Sinus tachycardia doesn’t have P waves. d) Ventricular tachycardia has P waves. 18) Which of the following dysrhythmias results in continuous fibrillatory waves between the QRS complexes? a) Atrial fibrillation b) Ventricular fibrillation c) Sinus rhythm d) Sinus arrest 19) Which of the following waves represents atrial depolarization? a) U wave b) Q wave c) T wave d) P wave 20) Which of the following places should the electrode for lead V4 be placed? a) The left leg b) Right arm c) The left side of the sternum, fifth intercostal space, midclavicular line d) The left side of the chest, fifth intercostal space, midaxillary line

NHA: EKG and Cardiovasular Testing

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