TELEMETRY ECG WAVEFORM ANALYSIS
AND ARRHYTHMIA DETECTION STUDY
GUIDE 2026
◉ continuous telemetry monitoring indications
Answer: any ICU patient
post-cardiac intervention
post-acute MI
specific medications
cardiac patients being actively treated
◉ EKG
Answer: graphic recording of the electrical activity of the heart
L-R is time
vertical is voltage
small box is 0.04 seconds
◉ isoelectric line
Answer: the flat line that occurs when no electrical activity is taking
place
used as baseline to identify changing electrical movement
,◉ positive deflection
Answer: when a wave moves towards the top of the paper
◉ negative deflection
Answer: when a wave moves towards the bottom of the paper
◉ steps to analyze a heart rhythm
Answer: calculate HR
analyze regularity
analyze P wave and measure PR interval
analyze QRS and measure QRS interval
analyze QT and measure QT interval
interpret the rhythm
◉ calculate the HR
Answer: count number of QRS complexes in sex second strip and
multiple by 10
◉ analyze the regularity
Answer: same number of boxes in between the QRS
, ◉ normal P wave
Answer: atrial depolarization
<0.12 seconds (3 blocks)
upright
round
symmetrical
SA node is working right and an electrical current has fired
◉ normal PR interval
Answer: beginning of P wave to beginning of QRS
0.12-0.20 second
represents the time for impulse to travel from SA node through AV
node
◉ normal QRS complex
Answer: ventricular depolarization
should be narrow
0.04-0.10 seconds
measured from the start of Q to J point
◉ J point
Answer: Point where the QRS complex and ST segment meet
AND ARRHYTHMIA DETECTION STUDY
GUIDE 2026
◉ continuous telemetry monitoring indications
Answer: any ICU patient
post-cardiac intervention
post-acute MI
specific medications
cardiac patients being actively treated
◉ EKG
Answer: graphic recording of the electrical activity of the heart
L-R is time
vertical is voltage
small box is 0.04 seconds
◉ isoelectric line
Answer: the flat line that occurs when no electrical activity is taking
place
used as baseline to identify changing electrical movement
,◉ positive deflection
Answer: when a wave moves towards the top of the paper
◉ negative deflection
Answer: when a wave moves towards the bottom of the paper
◉ steps to analyze a heart rhythm
Answer: calculate HR
analyze regularity
analyze P wave and measure PR interval
analyze QRS and measure QRS interval
analyze QT and measure QT interval
interpret the rhythm
◉ calculate the HR
Answer: count number of QRS complexes in sex second strip and
multiple by 10
◉ analyze the regularity
Answer: same number of boxes in between the QRS
, ◉ normal P wave
Answer: atrial depolarization
<0.12 seconds (3 blocks)
upright
round
symmetrical
SA node is working right and an electrical current has fired
◉ normal PR interval
Answer: beginning of P wave to beginning of QRS
0.12-0.20 second
represents the time for impulse to travel from SA node through AV
node
◉ normal QRS complex
Answer: ventricular depolarization
should be narrow
0.04-0.10 seconds
measured from the start of Q to J point
◉ J point
Answer: Point where the QRS complex and ST segment meet
