Myocardial infarction Flashcards
1
Q
what is the J point elevation?
A
A flatter ST segment, usually seen in a large group of leads with no reciprocal changes
an elevation of the T wave, but is NOT bigger than the QRS
2
Q
what is the evolution of an MI
A
- giant positive T wave
- ST segment elevation
- Q-wave development, R-wave diminution
- return of ST segment to normal, T-wave inversion
- Loss of R with QS pattern
- return of T wave to normal
3
Q
criteria for pathologic Q waves:
A
- The Q wave must be > 0.04 seconds in duration
- The depth must be at least one-third the height of the R wave in the same QRS complex.
4
Q
what are reciprocal changes?
A
- another part of the heart/EKG that mirrors/goes along with the change
- Finding reciprocal changes in another group supports STEMI dx!
5
Q
What does this EKG show?
A
hyperkalemia
6
Q
what does this EKG show?
A
hypokalemia
7
Q
what does this EKG show?
A
pericarditis
8
Q
what does this EKG show?
A
pulmonary embolism
