ECG PRACTICE EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS | ALREADY GRADED A+RECENT VERSION

ECG PRACTICE EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS | ALREADY GRADED A+RECENT VERSION 1) Electrocardiogram (ECG) - ANSWER Since you can't see the heart beating we use a ECG to provide a picture that replicates the actual cardiac issue. 2) Myocardial Infraction (MI) - ANSWER Heart Attack -Have abnormal rhythms. -Death of cardiac muscle due to ischemia 3) Doe the ECG machine monitor or control the hearts rhythm? - ANSWER Only monitors 4) Straight line when machine is turned on but not connected to the patient - ANSWER Isoelectric = no current It is straight because there is a balanced electrical force field. This Isoelectric line acts as a starting point for the patterns to be displayed 5) ECG Pattern - ANSWER Upward Pattern: electricity flowing from the heart to the electrodes moving to the positive electrode Downward Pattern: electricity flowing from the heart to the electrodes moving away from the positive electrode 6) Where should you put electrodes ? - ANSWER 1. Close to bone 2. Over soft tissue 7) Where should you NOT put electrodes - ANSWER 1. Thick muscles 2. Skin Folds 3. Bony prominence's 8) Which of the following activities should an EKG technician instruct a patient to record in the Holter monitor diary? - ANSWER Bike riding 9) When performing a stress test, an EKG technician should recognize that the test can be stopped when the patient reaches what percentage of their target heart rate? - ANSWER 85-100% 10) An EKG technician should follow which of the following recommendations regarding infection control practices in health care settings? - ANSWER Remove soiled gloves prior to touching uncontaminated surfaces. 11) Which of the following pulse points is most frequently used to check an adult patient's pulse during cardiopulmonary resuscitation (CPR)? - ANSWER Carotid 12) Which of the following arteries is the best location for an EKG technician to use to measure the heart rate for an adult patient following an exercise stress test? - ANSWER Radial 13) Which of the following actions should an EKG technician perform for a patient immediately before an exercise stress test? - ANSWER Measure blood pressure and obtain an EKG while the patient is supine, sitting, and standing up. 14) Which of the following sites is the most accurate for an EKG technician to use when measuring a patient's body temperature? - ANSWER Temporal 15) During an exercise stress test, a patient reports heaviness on his chest and becomes diaphoretic. The EKG technician should recognize these findings as manifestations of which of the following conditions? - ANSWER Myocardial infarction 16) A thin spike before the P wave indicates that a pacemaker has been implanted to pace which of the following? - ANSWER Atria 17) Which of the following is cause for discontinuing a stress test? - ANSWER ST segment elevation 18) An EKG technician is monitoring a patient who is undergoing an exercise stress test. Which of the following findings should indicate to the technician that the patient is experiencing an adverse reaction? - ANSWER Report of tingling sensations in the lower extremities 19) An EKG technician is caring for a patient in a provider's clinic who asks why the technician performs a standard 12-lead EKG as part of the physical examination. Which of the following response should the technician make? - ANSWER "The results can be used to determine if changes have occurred since your last EKG." 20) Which of the following statements should an EKG technician include when preparing a patient for an upcoming exercise stress test? - ANSWER "Refrain from caffiene, smoking, or alcohol for at least 3 hours prior to the test." 21) Which of the following positions is appropriate for a patient during a nuclear stress test while the camera is scanning? - ANSWER Supine with the arms above the head 22) Which of the following patient findings indicates myocardial infarction? - ANSWER Cyanosis 23) When performing an EKG on an infant, in which of the following locations should the EKG technician place the electrode for lead V3R? - ANSWER Between V2 and V4 on the right side of the chest 24) An EKG technician is educating a patient about home use of an ambulatory monitor. Which of the following actions should the technician instruct the patient to take if any electrodes become loose? - ANSWER Apply surgical tape to the electrodes to keep them in place 25) An EKG technician has a prescription to perform an EKG tracing on an older adult patient who is unconscious upon arrival at the emergency department. Which of the following actions should the technician take? - ANSWER Assume implied consent because the patient's condition is considered critical. 26) Which of the following lead groups forms Einthoven's triangle? - ANSWER Leads I. II. III 27) An EKG technician is performing a stress test for a patient. Which of the following EKG changes indicates that the patient is beginning to show signs of myocardial ischemia? - ANSWER Depressed ST segment 28) An EKG technician should recognize that a PR interval that spans four small boxes on the EKG paper has which of the following durations? - ANSWER 0.16 seconds 29) An EKG technician is preparing a patient for a standard 12-lead EKG. Which three leads should the technician place at the same horizontal level? - ANSWER 1. Leads V4, V5, and V6 30) In which of the following situations is it acceptable for an EKG technician to share a patient's protected health information? - ANSWER An inquiry for training purposes from the quality assurance office 31) An EKG technician is preparing to enter an inpatient room to perform a standard 12-lead EKG. Which of the following actions should the technician take for a patient who is prescribed contact precautions? - ANSWER Remove gloves before leaving the patient's room. 32) After completing a standard 12-lead EKG on a patient, which of the following actions should an EKG technician take next? - ANSWER Check that the tracing is free from artifacts and then disconnect the patient from the machine. 33) Which of the following findings is consistent with bradycardia? - ANSWER cold clammy skin 34) An EKG technician should recognize that which of the following signs are often present when a patient is experiencing ventricular tachycardia? - ANSWER Multiple premature ventricular contractions in a row 35) An EKG technician notes a standard 12-lead EKG tracing shows an uninterrupted baseline. The technician knows that this artifact is most likely caused by which of the following? - ANSWER Lead corrosion 36) An EKG technician is reviewing an EKG tracing and notes asystole. Which of the following actions should the technician take first? - ANSWER check the patients 37) An EKG technician is reviewing the EKG tracing of a patient who has a ventricular pacemaker and notes that the patient's heart rate is 76/min. The pacemaker is set to a rate of 70/min. Which of the following should the technician expect to observe on the patient's tracing if the pacemaker is operating as intended? - ANSWER Pacer spikes do not appear on the tracing 38) An EKG technician should recognize that which of the following is the most commonly used paper speed for an EKG? - ANSWER 25 mm/second 39) An EKG technician is performing an exercise stress test to evaluate a patient for coronary vascular disease. Which of the following actions should technician take regarding this procedure? - ANSWER Report unexpected dysrhythmias during the test. 40) An EKG technician is caring for a patient who is experiencing heart palpitations. Which of the following interventions should the technician expect the provider to prescribe? - ANSWER Holter monitor 41) An EKG technician is obtaining a pulse rate for a 2-year-old patient. Which of the following pulse rates should the technician recognize as within the expected reference range for this patient? - ANSWER 120/min