ECG

Question 1

Machine and Trace

Answer 1

Turn machine on
Check speed 25mm/sec
Check calibration ImV = Icm

Question 2

Position of leads

Answer 2

Contacts should be on the inside of ankle and wrists
Contacts should face downwards on wrist and chest
Contacts should face upwards on ankles
V1- 4th intercostal space right of sternum
V2- 4th n
V3
V4
V5
V6

Question 3

Position of leads

Answer 3

Contacts should be on the inside of ankle and wrists
Contacts should face downwards on wrist and chest
Contacts should face upwards on ankles
V1- 4th intercostal space right of sternum
V2- 4th intercostal space left of sternum
V3- in between V2 and V4
V4- 5th intercostal space, midclavicular line left of sternum
V5- same horizontal level as V4 anterior axillary
V6- same horizontal level as V4 mid axillary line
Read (RED)-Right arm
Your (YELLOW)- Left arm
Books (BLACK)- Right Leg
Good (GREEN)- Left leg

Question 4

Obtaining

Answer 4

Switch machine on
Advice patient to sit still and try not to speak
Print off ECG trace
Sign with Name, DOB, CHI, Date is was taken and my signature

Question 5

Interpreting ECG

Answer 5

Any electrical activity
Rate
Irregular/regular
Broad/Narrow
Atrial depolarisation (P wave)
Relationship between QRS and P wave

Question 6

Working out Rate

Answer 6

1. If regular count how many squares between QRS complex and divide 300 by this number
2. Count how many QRS complex there is in 30 squares and X 10