ECG MED ED Flashcards
Where do the limb electrodes go?
Red: right arm (forearm or wrist)
Yellow: left arm (forearm or wrist)
Green: left leg (proximal to ankle)
Black: right leg (proximal to ankle)
Where is V1 placed?
4th intercostal space, right sternal edge
Where is V2 placed?
4th intercostal space, left sternal edge
Where is V3 placed?
midway between V2 and V4
Where is V4 placed?
5th intercostal space, mid-clavicular line
Where is V5 placed?
Anterior axillary line in straight line with V4
Where is V6 placed?
mid-axillary line straight line with V4 and V6
What should you avoid with sticking on electrodes?
hair
What do you check with ECG?
- NAME, DOB, TIME TAKEN
- Rate and Rhythm
3.
What is the first thing to check on ECG?
CHECK NAME, DOB and TIME TAKEN
What is the normal paper speed?
should be 25mm/sec
How long is one small square?
1mm = 0.04 sec
How long is one big square?
5mm = 0.20sec
What is the normal calibration?
should be 1cm (10mm)/mV
How do you check the calibration signal?
should move two big squares (rectangle at the end should be 2 sqaures tall)
What angle does lead III show?
120 degrees
What angle does aVF show?
90 degrees
What angle does lead II show?
60 degrees
What angle does lead I show?
0 degrees
What angle does aVL show?
-30 degrees
What angle does aVR show?
-150 degrees
What do leads I and aVL look at?
left side of heart
What do leads III, aVF and II look at?
inferior aspect of heart
What do leads V1 and V2 look at?
septal
What do leads V3 and V4 look at?
anterior of heart
What do leads V5 and V6 look at?
lateral left side of heart
How do you determine the rate?
count QRS complex in rhythm strip x 6
What is normal rate?
Normal range is 60-100bpm
What are the 3 types of rate?
- normal
- tachycardic
- bradycardic
What are the 3 types of rythm?
- sinus
- regular irregular
- irregular irregular
What is sinus rhythm?
P wave starting each QRS
What is a regular irregular rhythm?
consistent gap between QRS