CRAT Review questions with accurate detailed ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answers
Transtelephonic Monitoring - correct answer✔✔Transmitted over phone to a LICENSED ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
practitioner to read (magnetic tape), Patients use up to 30 days ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Digital Monitoring - correct answer✔✔Transmitted over a computer where report is
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
verified by a licensed practitioner ||\\//|| ||\\//|| ||\\//|| ||\\//||
Telemedicine monitoring is usually used to evaluate_____________ - correct ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔Artificial Pacemaker Functioning ||\\//|| ||\\//||
Ambulatory Monitor - correct answer✔✔Most common type is holter monitor (continuous ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
or intermittent-only records when patient has symptoms. Used for dysrhythmias, evaluation
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
cardic meds, and checking pacemakers-24-48 hrs-up to 30 days
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Procedure for applying ambulatory monitor (holter) - correct answer✔✔Educate patient,
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
equipment gathered and prepared, electrodes placed on chest, equipment hooked up ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Procedure for removing - correct answer✔✔before removing, diary must be complete by
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
patient, then turn off recording, remove electrodes, clean skin, report results
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
*process is based on type of equipment uses ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Functions of common ECG machine - correct answer✔✔3 basic functions are input, signal
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
processing, output display. Sensors in ECG machine serve as receiving devices for the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
electrical activity of the heart. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
INPUT-Electrode placed on patients skin direct impulses to ECG instrument, providing the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
input. Signal processing happens in ECG machine, output display is the result of processing
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
, and is shown on screen (known as oscilloscope) and/or on ECG tracings. Electronic output
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
is quickly becoming most common choice for ECG tracings.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
ECG machine controls - correct answer✔✔# most common are speed, gain, artifact filter.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
also have these controls: LCD display, heart rate limits, standardization, and lead section
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Speed control - correct answer✔✔regulates how fast or slow the paper or data run during
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
procedure. MOST COMMONLY USED: 25 mm/sec ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
*increasing the speed for example to 50mm/sec will make wave forms appear wider and is ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
useful if patient heart rate is very fast. if you change the speed you must note on tracing by
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
circling the setting on tracing and notify the healthcare provider ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
*speed in measure on a horizontial axis ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Gain - correct answer✔✔control on ECG machine that increases or decreases size of ECG
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
tracing. Normal setting is 10mm/mV. 20mm/V will double size and 5mm/V will reduce size ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
by half
||\\//|| ||\\//||
* NEED TO KNOW mV is a millivolt-unit of measurement to indicate voltage- Voltage is
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
measures on a vertical axis ||\\//|| ||\\//|| ||\\//|| ||\\//||
Artifact Filter - correct answer✔✔unwanted marks on ECG tracing caused by something ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
other than heart activity ||\\//|| ||\\//|| ||\\//||
*Normal settings is between 40-150Hz, 40 Hz can be used to reduce artifact ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
3 most common causes of artifact are: - correct answer✔✔Somatic tremor, wandering
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
baseline, and AC interference ||\\//|| ||\\//|| ||\\//||
History of ECG - correct answer✔✔1903-Wilhelm Einthoven ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answers
Transtelephonic Monitoring - correct answer✔✔Transmitted over phone to a LICENSED ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
practitioner to read (magnetic tape), Patients use up to 30 days ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Digital Monitoring - correct answer✔✔Transmitted over a computer where report is
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
verified by a licensed practitioner ||\\//|| ||\\//|| ||\\//|| ||\\//||
Telemedicine monitoring is usually used to evaluate_____________ - correct ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔Artificial Pacemaker Functioning ||\\//|| ||\\//||
Ambulatory Monitor - correct answer✔✔Most common type is holter monitor (continuous ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
or intermittent-only records when patient has symptoms. Used for dysrhythmias, evaluation
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
cardic meds, and checking pacemakers-24-48 hrs-up to 30 days
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Procedure for applying ambulatory monitor (holter) - correct answer✔✔Educate patient,
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
equipment gathered and prepared, electrodes placed on chest, equipment hooked up ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Procedure for removing - correct answer✔✔before removing, diary must be complete by
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
patient, then turn off recording, remove electrodes, clean skin, report results
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
*process is based on type of equipment uses ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Functions of common ECG machine - correct answer✔✔3 basic functions are input, signal
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
processing, output display. Sensors in ECG machine serve as receiving devices for the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
electrical activity of the heart. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
INPUT-Electrode placed on patients skin direct impulses to ECG instrument, providing the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
input. Signal processing happens in ECG machine, output display is the result of processing
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
, and is shown on screen (known as oscilloscope) and/or on ECG tracings. Electronic output
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
is quickly becoming most common choice for ECG tracings.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
ECG machine controls - correct answer✔✔# most common are speed, gain, artifact filter.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
also have these controls: LCD display, heart rate limits, standardization, and lead section
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Speed control - correct answer✔✔regulates how fast or slow the paper or data run during
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
procedure. MOST COMMONLY USED: 25 mm/sec ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
*increasing the speed for example to 50mm/sec will make wave forms appear wider and is ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
useful if patient heart rate is very fast. if you change the speed you must note on tracing by
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
circling the setting on tracing and notify the healthcare provider ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
*speed in measure on a horizontial axis ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Gain - correct answer✔✔control on ECG machine that increases or decreases size of ECG
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
tracing. Normal setting is 10mm/mV. 20mm/V will double size and 5mm/V will reduce size ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
by half
||\\//|| ||\\//||
* NEED TO KNOW mV is a millivolt-unit of measurement to indicate voltage- Voltage is
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
measures on a vertical axis ||\\//|| ||\\//|| ||\\//|| ||\\//||
Artifact Filter - correct answer✔✔unwanted marks on ECG tracing caused by something ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
other than heart activity ||\\//|| ||\\//|| ||\\//||
*Normal settings is between 40-150Hz, 40 Hz can be used to reduce artifact ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
3 most common causes of artifact are: - correct answer✔✔Somatic tremor, wandering
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
baseline, and AC interference ||\\//|| ||\\//|| ||\\//||
History of ECG - correct answer✔✔1903-Wilhelm Einthoven ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
