EKG practice Exam 2023 with complete solutions

A technician is preparing a patient for a 12-lead EKG. Which of the following is the correct placement for lead V4? A) The 5th intercostal space at the midclavicular line. B) The 4th intercostal space at the midaxillary line. C) The 5th intercostal space at the midaxillary line. D) The 4th intercostal space at the midclavicular line. - ANSWER-The 5th intercostal space at the mid clavicle line The R-R internal on a patient's tracing has five large boxes. Which of the following is the patient's heart rate? A) 40/mm B) 60/mm C) 75/mm D) 85/mm - ANSWER-60/mm An EKG technician is about to perform an EKG on a 3-year old patient. Which of the following is an appropriate action for the technician to take before the procedure? A) Restrain the child B) Tell the child that the procedure won't hurt C) Ask the parent to hold the child during the procedure D) Ask the parents to step out of the room - ANSWER-Tell the child that the procedure won't hurt A patient is experiencing a change of respiratory cycle and variations in Vagal tone. Which of the following irregularities does this indicate? A) Sinus arrest B) Sinus arrhythmia C) Tachycardia D) Bradycardia - ANSWER-Sinus arrhythmia Which of the following is the most appropriate site for taking the pulse of an infant? A) Brachial artery B) Carotid artery C) Radial artery D) Femoral artery - ANSWER-Brachial artery While performing a stress test, the patient complains of heaviness on his chest and becomes diaphoretic. These are signs and symptoms of which of the following conditions? A) Transient Ischemic attack B) Cerebrovascular accident C) Congestive heart failure D) Myocardial infarction - ANSWER-Myocardial infarction Which of the following is the correct sensitive setting to create an EKG standardization mark of 5/mm? A) ½ B) 1 C) 2 D) 1/4 - ANSWER-1/2 For a 5-lead EKG, where should the red lead be placed? A) Upper right shoulder B) Lower left torso C) Lower right torso D) Upper left shoulder - ANSWER-Lower left torso Which of the following signs should the EKG technician be concerned about in a patient undergoing stress testing? A) Decreased heart rate B) Increased breathing rate C) Increased sweating D) Decreased premature beats - ANSWER-Decreased heart rate Repairs on an EKG machine should be performed by which of the following? A) The EKG technician assigned to the machine B) The lead EKG technician C) A biomedical technologist D) A laboratory technologist - ANSWER-A biomedical technologist The EKG technician is educating a patient on when she should push the event button while wearing a holster monitor. Which of the following statements indicates patients understanding? A) I will push the event button after finishing a job. B) I will push the event button if I'm experiencing discomfort C) I will push the event button after every meal D) I will push the event button before taking medication - ANSWER-I will push the event button if I'm experiencing discomfort Which of the following statements made by the EKG technician correctly prepares the patient for telemetry monitoring? A) You may clean the skin with an alcohol pad B) You may feel a slight warming sensation after the electrodes are placed on the skin C) A mild rash or skin redness should be expected around the electrodes after 24 hours D) Electrodes will be replaced once a week while your are in the hospital - ANSWER-You may clean the skin with with an alcohol pad Which of the following describes the correct electrodes placement for lead v5? A) Right of the sternum, 4th intercostal space B) Anterior axillary line, 5th intercostal space C) Left of the sternum, 4th intercostal space D) Midaxillary line, 5th intercostal space - ANSWER-Anterior axillary line, 5th intercostal space Which of the following is the most accurate site for measuring a patients's body temperature ? A) Mouth B) Armpit C) Forehead D) Rectum - ANSWER-Rectum A myocardial infarction can often be detected by the presence of which of the following in an EKG tracing? A) Minor p waves B) M-shaped p waves C) Physiologic q waves D) Pathologic q waves - ANSWER-Pathological Q waves Which of the following can cause sinus arryhythmia in children? A) The respiration of the patient B) The decrease of oxygen to the patient's heart C) The patient's sinistral node is firing above 100/mm D) The patient's pacemaker - ANSWER-The repiration of the patient For which patient would an EKG technician expect to see somatic interference on the EKG monitor? A) 60 year old woman sweating profusely B) 20 year old man seizing C) 10 year old boy watching tv D) 30 year old woman on her phone - ANSWER-20 yr old seizing Which of the following is a reason that a patient should wear loose fitting clothing while wearing a holter monitor? A) To reduce artifact B) To promote patient relaxation C) To widen the waveforms D) To minimize patient self consciousness - ANSWER-To reduce artifact An EKG technician observes st segment depression and t wave inversion in multiple leads. Which of the following should the technician suspect? A) Myocardial infarction B) Myocardial injury C) Myocardial ischemia D) Heart block - ANSWER-Myocardial ischemia Where should the EKG technician place the electrode for lead v5? A) On the left midaxillary horizontal to v4 B) On the left anterior line, horizontal to v4 C) On the left midclavicular line, 5th intercostal space D) On the right margin of the sternum, 4th intercostal space - ANSWER-On the left anterior line, horizontal to v4 In order for an EKG technician to control and regulate the output or height of EKG waveforms, he/she should use which control? A) Speed B) Stylus C) Calibration D) Sensitivity - ANSWER-Sensitivity An EKG technician detects a U wave, and the patient reports chest pain and discomfort. Which of the following is an appropriate action for the technician to take? A) Reposition the patient's electrodes B) Perform another EKG recording C) Notify the patient's physician D) Check the patient and the room for cause of artifacts interference - ANSWER-Notify the patient's physician A technician is performing an EKG in a hospital setting. The patient becomes unresponsive, stops breathing, does not have a pulse. Which of the following would be the first appropriate step? A) Place the patient in the recovery position B) Start chest compressions C) Perform rescue breathing D) Retrieve the automated external defibrillator - ANSWER-Start chest compressions Which of the following intervals should be used to determine the regularity of ventricular depolarization? A) P-P B) R-R C) QT D) PR - ANSWER-R-R While performing a stress test, the patient complains of dizziness. After stopping the test, which of the following actions should the CET take first? A) Notify the physician B) Obtain vital signs C) Contact the spouse D) Administer oxygen - ANSWER-Notify the physician 26) The physician has ordered a patient to wear a telemetry monitor at home. Which of the following statements from the patient indicates the need for further instructions? A) I should take a sponge bath while wearing the monitor B) I'll keep track of my daily activities in a diary C) If the leads come loose I'll reattach them D) If the batteries fail I'll replace them myself - ANSWER-If the leads come loose I'll reattach them A CET has performed an EKG on a patient. Which of the following actions by the CET would protect the patient's health information in accordance with HIPAA? A) Sending the EKG in an encrypted electronic file to the patient's employer. B) Whiting out the patient's name address and physical description on the EKG printout C) Restricting the patient's access to the EKG file D) Hand delivering the EKG to the patient's physician - ANSWER-Hand delivering the EKG to the patient's physician which of the following abnormalities is associated with large U waves on the EKG? A) Increased sodium level B) Increased potassium level C) Decreased sodium level D) Decreased potassium level - ANSWER-Decreased potassium level While performing a treadmill stress test on a patient the CET observes peaked hyperacute and broad based t waves and convex st segments, the CET should identify these findings as A) Normal EKG changes as a result of running B) Normal EKG changes due to hypokalemia C) Signs of pulmonary embolism D) Signs of myocardial ischemia - ANSWER-Signs of myocardial ischemia Which of the following symptoms is most likely to be consistent with bradycardia? A) Hyperventilation B) Blood pressure of 100/80 mm/Hg C) Cold and clammy skin D) Pulse rate of 140/min - ANSWER-Cold and clammy skin The QRS complex is too tall to fit on the EKG paper. Which of the following actions should the EKG technician take? A) Change the gain control to 2 B) Change the paper speed to 25mm/second C) Change the gain control speed to ½ D) Change the paper speed to 50 mm/second - ANSWER-Change the gain control speed to ½ Which of the following is cause for discontinuing a stress test? A) Increased diaphoresis B) Shortened PR interval C) Increase in heart rate D) St segment elevation - ANSWER-St segment elevation An EKG technician eliminates an EKG tracing artifact by plugging the machine into a different wall outlet. This means that the artifact was caused by which of the following? A) Broken recording B) 60 cycle interference C) Interrupted baseline D) Wandering baseline - ANSWER-60 cycle interference What is the correct order of a complete cardiac cycle in the normal heart? A) P wave, Q wave, and ST segment B) P wave, QRS complex, and T wave C) P wave, T wave, RS segment D) P wave, QRS complex, and U wave - ANSWER-P wave, QRS complex, and T wave 35) Which of the following modifications may be lead placement when recording a standard 12 lead EKG on a 2 yr old patient? A) Move the limbs leads to the torso B) Place the chest leads on the left back C) Reverse the limb leads D) Place the chest leads lower on the chest - ANSWER-Move the leads to the torso 36)A thin spike before the P wave indicates that the pacemaker has been implanted to pace which if the following? A) Atria B) Ventricles C) Early repolarization D) Late repolarization - ANSWER-Atria Electrical interference on an EKG would most likely be a result of which of the following? A) Excessive patient movement B) Incorrect lead placement C) A frayed wire D) Somatic tremor - ANSWER-A frayed wire A patient loses consciousness. The EKG tracing reveals ventricular fibrillation. Which of the following should the EKG technician do first? A) Notify the physician of the arrest B) Call for help and begin CPR C) Go get the automated external defibrillator D) Administer oxygen - ANSWER-Call for help and begin CPR 39) When performing a posterior EKG which of the following is the correct location of lead V8? A) Left midscapular B) Right midscapular C) Right posterior axillary line D) Left posterior axillary line - ANSWER-Left midscapular During a stress test an EKG technician notices the patient to be hyperventilating. Which of the following is an appropriate course of action for the technician? A) Administer oxygen B) Slow down the test C) Stop the exercise portion of the test D) Check the patient's respiratory rate - ANSWER-Check the patient's respiratory rate A patient presents alert and oriented but an EKG technician finds that all the waveforms are negative in lead 1. The technician should check the cable connections for which of the following limb electrodes? A) Left leg Andy right leg B) Left arm and left leg C) Right arm and left leg D) Right arm and left arm - ANSWER-Right arm and left arm Which of the following is the only calculating method available for both regular and irregular rhythms? A) Six second method B) R-r method C) 1500 method D) 300 method - ANSWER-Six second method Which of the following is the correct section to measure the QRS complex? A) End of the q wave to the beginning of the S wave B) Beginning of the q wave to the beginning of the S wave C) Beginning of the QR segment to the end of the RS segment D) Beginning of the q wave to the end of the S wave - ANSWER-Begining of the q wave to the end of the S wave Which of the following lead groups are bipolar leads? A) aVR, aVL, and aVF B) I,II,and III C) V1,V2, and V3 D) V4, V5, and V6 - ANSWER-I,II,III Which of the following blocks is the most serious? A) First degree heart block B) Second degree Av block wenkeback C) Second degree AV block mobitz 2 D) Third degree