Telemetry Basics Study Questions
ECG-bigger square consists of how many tiny boxes? - ✔✔5 tiny boxes
tiny box= how many seconds - ✔✔0.04 sec
NORMAL PR interval? - ✔✔0.12-0.20 seconds (3-5 tiny boxes)
Normal QRS compl
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Telemetry Basics Study Questions
ECG-bigger square consists of how many tiny boxes? - ✔✔5 tiny boxes
tiny box= how many seconds - ✔✔0.04 sec
NORMAL PR interval? - ✔✔0.12-0.20 seconds (3-5 tiny boxes)
Normal QRS complex? - ✔✔<.12 seconds (3 tiny box or less)
Normal QT interval - ✔✔0.32-0.44 seconds
WHAT DRUG DO WE NEED TO KNOW THE QT INTERVAL FOR? - ✔✔Amioderone
ECG- bigger square represents how many seconds? - ✔✔0.2 sec
how many seconds is in ONE STRIP - ✔✔6
What does the ECG do? - ✔✔detects electrical changes in heart., finds arrhythmias, effects of
drugs, DETECT MYOCARDIAL DAMAGE
Steps on how do you assess a ECG strip? - ✔✔-HR= count the Rs and multiple by 10
-Rythym= regular or irregular
-Evaluate P wave
-PR interval?
-QRS interval?
If the T wave is absent what may that indicate? - ✔✔MI or cardiac injury
Afib picture - ✔✔many erratic-looking p waves
Atrial flutter - ✔✔sawtooth looking P waves
PVC - ✔✔premature ventricular contraction=
-QRS bizzare, OCCURS EARLY, no preceding P wave
irregular;ectopic ventricular beath originating abnormal conduction pathway
PAC - ✔✔premature atrial contraction
V tach- pic w/ brief description - ✔✔no P waves, HR>100, may or may not have a pulse,
electrical impulse starts in ventricle= inadequate blood flow--- untreated usually progress to V
fib
V fib picture &slight definition - ✔✔no pulse, chaotic/disorganized/deadly
What PVC can predict? - ✔✔Vfib, Vtach
MI may cause which arrhythmias? - ✔✔Afib, Vtach, Sinus brady, heart block
Sinus Bradycardia - ✔✔<60 bpm
Sinus Tachycardia - ✔✔>100 bpm
Multiple P waves are present in which rhythms - ✔✔atrial flutter and Afib
what happens during the P wave? - ✔✔atrial depolarization (atrial contraction)
what happens during the QRS complex? - ✔✔ventricular depolarization (ventricles contract) and
atrial repolarization(atrial rest)
What happens during the T wave? - ✔✔Ventricular repolarization (ventricular relaxation)
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