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Certified EkG technician (CET) practice test
2.0 A
when should the assistant reduce the speed to 50mm/ second?
- ANSWER - when a patient has a fast heart rate when are 10mm/ second and 5mm/second used? - ANSWER - for patients that have slow heart rates During a 5-lead EKG, lead 2 and 3 are not yielding a reading, what limbs should the technician check? - ANSWER - left leg what describes a pulse oximetry of 88% - ANSWER - hypoxemia a thin spike before the P wave indicates that a pacemaker has been implanted to pace what? - ANSWER - atria
which locations is used for a patient's apical pulse? - ANSWER - between the fifth and sixth ribs, at the left midclavicular line if having trouble visualizing the patients chest movement, what actions should the technician take to obtain an accurate respiratory rate for the patient? - ANSWER - place a hand on the middle of the patients back to count the respirations what intervals should be used to determine the regularity of ventricular depolarization? - ANSWER - R-R wave interval when placing electrodes on the patients for telemetry, what locations should an EKG technician place the ground electrode?
- ANSWER - on the right lower leg what findings should indicate to the technician that the patient is experiencing an adverse reaction? - ANSWER - report of tingling sensations in the lower extremities an EKG technician notices an accelerated idioventricular rhythm on a tracing, what actions should the technician take next? - ANSWER - call for help and stay with the patient
what is the most accurate for an EKG technician to sue when measuring a patient's body temperature? - ANSWER - temporal an EKG technician is performing a posterior 12-lead EKG for patient, what leads should the technician place along the paraspinous border? - ANSWER - lead V after completing a standard 12-lead EKG on a patient, what action should the technician take next? - ANSWER - check that the machine is free from artifacts and then disconnect the patient from the machine an EKG technician should recognize that what signs are often present when a patient is experiencing ventricular tachycardia?
- ANSWER - multiple premature ventricular contractions in a row when preparing a patient for an exercise test, what leads should the technician place on the right lower side of the anterior torso? - ANSWER - lead RL
what lead is created between the left arm and left leg? - ANSWER - lead 3 what lead is created between the left arm and the right arm plus the left leg? - ANSWER - lead aVL what lead is created between the left leg and the right arm plus the left arm - ANSWER - lead aVF what lead does the right arm and the left arm form? - ANSWER
- lead 1 the technician notes that the QRS complex is too tall to fit on the EKG paper, what action should the technician take? - ANSWER - change the gain contril to 5mm/ mV an technician should recognize that a rhythm strip should be at least how many seconds long to accurately identify rate and rhythm? - ANSWER - 6 seconds
the patient apply the card to activate it during an event? - ANSWER - over the middle to lower part of the sternum what EKG machine functions should an EKG technician use to control and regulate the height of EKG waveforms on the tracing? - ANSWER - gain what positon is appropriate for a patient during a nuclear stress test while the camera is scanning? - ANSWER - supine with the arms above the head when preparing a standard 12-lead EKG for a patient who is at 35 weeks of gestation, what position should the technician place the patient? - ANSWER - slightly on the left side with a pillow supporting the right hip if the technician notes that none of the leads are giving a reading, what limbs should the technician check first? - ANSWER - right leg the presence of what on an EKG tracing can indicate a previous myocardial infarction? - ANSWER - pathologic Q waves
what site is the most appropriate for an EKG technician to use when taking the pulse of an infant? - ANSWER - brachial artery what is social history? - ANSWER - a patient's lifestlye, living situation alcohol use, nicotine use, and exercise habits when reviewing the EKG tracing of a patient who has ventricular hypertrophy, what findings should the technician expect? - ANSWER - increased amplitude of the QRS complex what locations should an EKG technician place the electrodes for leads V7, V8, and V9? - ANSWER - evenly spaced on the back between the axillary line and the vertebral column at the fifth intercostal space while performing a stress test on a patient,elevated ST segments are observed, what are these findings identified as? - ANSWER - signs of acute myocardial injury what describes an EKG technician writing defamatory comments in a patient's chart? - ANSWER - libel
when should the technician use the 300 method? - ANSWER - when calculating a full cardiac cycle what location is used for an apical pulse? - ANSWER - between the fifth and sixth ribs, at the left midclavicular line what actions should the technician perform before an exercise stress test? - ANSWER - measure BP and obtain an EKG while the patient is supine, sitting, and standing up what findings is consistent with bradycardia? - ANSWER - cold and clammy skin when applying a holter monitor, how many leads are placed on the patient? - ANSWER - 5 what signs are often present when a patient is experiencing ventricular tachycardia? - ANSWER - multiple premature ventricular contractions in a row
what is the appropriate position for a patient during a nuclear stress test while the camera is scanning? - ANSWER - supine with arms above the head for a standard 12-lead EKG, what three leads should the technician place at the same horizontal level? - ANSWER - leads, V4, V5, V what findings indicated myocardial infarction? - ANSWER - cyanosis what leads are created between the left arm and left leg? - ANSWER - lead 3 what factors can produce an artifact that appears as uniform, small spikes on an EKG tracing? - ANSWER - improper grounding, crossed lead wires, and electrical interference a patient reports heaviness on his chest and becomes diaphoretic, what manifestations are the following? - ANSWER - myocardial infarction
what is the characteristics of the EKG tracing for a patient who has atrial fibrillation? - ANSWER - R-R interval is irregularly irregular what describes a complete cardiac cycle? - ANSWER - P wave, QRS complex, and T wave an EKG technician is performing an exercise stress test to evaluate a patient for coronary vascular disease, what action should the technician take when regarding this procedure? - ANSWER - report unexpected dysrhythmias during the test what is the cause for discontinuing a stress test? - ANSWER - ST segment elevation what methods can be used to calculate both regular and irregular rhythms? - ANSWER - 6 second method what is the P wave a result of? - ANSWER - atrial depolarization
what lead should the technician place along the paraspinous border? - ANSWER - lead V what lead should the technician place on the right lower side of the anterior torso? - ANSWER - lead RL what is the expected reference range for the respiratory rate of a newborn patient? - ANSWER - 30 to 49/min
