ECG

Question 1

what does ARI BAR stand for

Answer 1

A - any electrical activity
R - rate
I - irregular or regular

B - Broad or narrow (QRS complexes)
A - atrial activity
R - relationship between atrial and ventricular activity

Question 2

what should you check before starting the ECG procedure (relating to the machine)

Answer 2

plugged in
switched on
enough paper
enough biotabs

all leads and tabs are stuck on

Question 3

what should you double check before starting the ECG procedure (relating to the patient )

Answer 3

you have consent and have explained the procedure

arms/ legs and front of the chest are exposed

ensure the patient is confrontable, rested and warm

Question 4

what should you check the trace for

Answer 4

that it is set up at the right speed and calibration

Question 5

what is the right speed of the paper in a ECG

Answer 5

25mm/ sec

Question 6

what should the calibration of a ECG machine be at

Answer 6

1mV = 1cm

Question 7

what must you not do after removing the biotabs

Answer 7

stick them on your own skin

Question 8

how many limb leads are there

Answer 8

4

Question 9

where does the red limb lead go

Answer 9

right wrist

Question 10

where does the yellow limb lead go

Answer 10

left wrist

Question 11

where does the black limb lead go

Answer 11

right ankle

Question 12

where does the green limb lead go

Answer 12

left ankle

Question 13

what orientation should the biotabs on the wrist be in

Answer 13

the non sticky part should be facing down towards the centre of the body

Question 14

what orientation should the biotabs on the ankles be in

Answer 14

the non sticky part should be facing up towards the centre of the body

Question 15

how many precordium ECG modes are there

Answer 15

6

Question 16

where does chest lead V1 go

Answer 16

4th intercostal space - to the right of the sternum

Question 17

where does chest lead V2 go

Answer 17

4th intercostal space - to the left of the sternum

Question 18

where does chest lead V3 go

Answer 18

midway between leads 2 and 4

Question 19

where does chest lead V4 go

Answer 19

LEFT 5th intercostal space on the mid clavicular line

Question 20

where does chest lead V5 go

Answer 20

between V4 and V6 on the same horizontal level - (or on the anterior axillary line)

Question 21

where does chest lead V6 go

Answer 21

same horizontal level as V4 on the mid axillary line

Question 22

what orientation should the biotabs on the front of the chest be in

Answer 22

all of them facing down to the stomach

Question 23

what should you do after the completion of the ECG

Answer 23

label the 12 lead ECG
date and time the ECG

check if any symptoms were experienced during the procedure

Question 24

how do you count heart rate from a ECG

Answer 24

count the QRS complexes in 30 (6 seconds) large squares and times by 10

Question 25

how long does each large square represent

Answer 25

0.2 seconds

Question 26

how long does each small square represent

Answer 26

0.04 seconds

Question 27

what is the normal size for a QRS complex

Answer 27

less than 0.12 secs (3 smalls squares)

Question 28

what is the general outline for taking a ECG

Answer 28

intro 
consent 
prepare
procedure 
take everything off 
thank the patient

Question 29

what should you do with a female patient surrounding the chest leads

Answer 29

put them below the breast tissue as it gives for a better pick up

Question 30

how long should the PR interval be - what weird

Answer 30

(technically its the PQ interval)

between 0.12 and 0.2 seconds

Question 31

what is the maximum time for the QT interval to last

Answer 31

0.42 seconds