STEMI Leads and vessels

Question 1

septal leads face

Answer 1

V1 and V 2

Question 2

septal leads reciprocal changes seen in

Answer 2

V7, V8, V9

Question 3

anterior leads

Answer 3

V3, V4

Question 4

anterior leads reciprocal changes seen in

Answer 4

Nil (may see some in big MI

Question 5

lateral leads

Answer 5

I, AVL, V5, V6

Question 6

lateral leads reciprocal Chages in

Answer 6

II, III, AVF

Question 7

inferior leads

Answer 7

II, III< AVF

Question 8

inferior reciprocal changes in…

Answer 8

I, AVL

Question 9

poster leads

Answer 9

v 7-9

Question 10

posterior recepricol changes

Answer 10

V1, V2

Question 11

function of the pacemaker cells

Answer 11

These cells have automaticity and create the electrical conduction system of the heart

Question 12

large box on the ECG represents

Answer 12

200 ms

Question 13

small box on ECGs represents

Answer 13

40 ms

Question 14

When the depolarization is moving toward a positive electrode on the ecg, the complexes will be

Answer 14

upright

Question 15

outline PAILS

Answer 15

Posterior – anterior reciprocal changes

Anterior – inferior reciprocal changes

Inferior – lateral reciprocal changes

Lateral <-> inferior or septal reciprocal changes

Septal – posterior reciprocal changes

Question 16

normal QRS length

Answer 16

80-100ms

Question 17

wide QRS is

Answer 17

over 120ms

Question 18

normal PR length

Answer 18

120-200

Question 19

elevation considered ST elevation in our guidelines

Answer 19

More than or equal to 2 mm (200 μV) of ST elevation in two or more leads V1-3, or

More than or equal to 1 mm (100 μV) of ST elevation in two or more contiguous leads in any other area.