ST segment depression + elevation

Question 1

Differentiate between normal ST-segment and ST elevation

Answer 1

Under normal circumstances, ST segment remains on isoelectric line.

Elevation or depression is pathological (ischaemia)

Question 2

What is the criteria for ST-elevation?

Answer 2

To be significant:
(1) >=1mm in 2 consecutive limb leads OR
(2) >=2mm in 2 consecutive chest leads

Question 3

Look at ST elevation and depression

What does elevation and depression suggest?

Answer 3

Elevation: infarction

Depression: ischaemia

Question 4

State the evolution STEMI on an ECG

Answer 4

Question 5

Look at the ischaemic territories and then state it

Answer 5