Stemi guidlines Flashcards

1
Q

name the anterior leads and vessel

A

A
V3-V4, left anterior descending

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2
Q

name the septal leads and vessel

A

V1, V2, RCA

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3
Q

name the lateral leads and vessel

A

AVL, I, V5, V6, Cx

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4
Q

name the inferior leads and vessels

A

II, III, AVF, RCA

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5
Q

what occurs when there is increased strain on the heart and there is atherosclerosis present

A

more and more blood is rushed past the area of plaque, which can cause it to rupture

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6
Q

what happens when an area of plaque ruptures

A

thrombus forms inhibiting blood flow = ischemic cells

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7
Q

what happens to cardiac myocytes starved of 02

A

decreased rate of contraction until they stop beating, then the die leading to the release of troponins

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8
Q

main differentials of STEMI

A

angina, pericarditis, LBBB. CHF, ACPO

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9
Q

guidline diagnosis criteria for a stemi

A

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.

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10
Q

what other information can support the diagnosis of a STEMI

A

While ST segment elevation is required for STEMI diagnosis, other concurrent ECG changes can support the diagnosis, including T wave changes, evolving ST elevation and reciprocal changes.

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11
Q

post ROSC ST elevation

A

Cardiac arrest may cause transient ST elevation to be present for 20-30 minutes after return of spontaneous circulation, particularly when adrenaline has been administered. Unless the STEMI was diagnosed prior to the cardiac arrest, ST elevation post cardiac arrest should not be immediately treated as STEMI. Consider delaying or repeating the 12 lead ECG ten minutes following ROSC, obtain serial ECGs 15 minutes apart, and have a low threshold for seeking clinical advice.

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12
Q
A
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