STEMI

Question 1

What is a STEMI?

Answer 1

ST elevation is commonly associated with myocardial infarction.

Observed with ST segment elevation at the J-point - the junction between the end of the QRS complex and the start of the ST segment.

Question 2

What is the J-point and how is it observed?

Answer 2

• J point is the junction between the end of the QRS complex and the start of the ST segment.

Question 3

How do I recognise a STEMI ?

Answer 3

• J-point evaluation above the isoeletric line. The height of the J-point is used to measure the extend of the MI.
• Measured in millimetres.
• The height of the elevation will depend on if it triggers activation of primary percutaneous coronary intervention (PPCI).

Question 4

What leads can a STEMI be present in?

Answer 4

Varies according to where the infarct is occurring.

Question 5

Signs and symptoms of a STEMI

Answer 5

Can be asymptomatic or symptomatic

Women are more likely to have different symptoms to men.

Some symptoms include:
- Chest pain
- Palpitation s
- nausea
- shock

Question 6

Significance of STEMI

Answer 6

Reciprocal changed may be observed these are STD at the J-point however these are not always present.

Non-ST elevation MI (NSTEMI) presents with ACS symptoms However may only present with STD or no change at all.