- Basics of ECG Interpretation11 Topics
- Normal ECG Parameters
- ECG Interpretation of Chamber Enlargement4 Topics
- Dysrhythmias
- Bradycardia
- Heart Block3 Topics
- Sick Sinus Syndrome
- Tachycardia8 Topics
- Hyperkalemia
- Myocardial Hypoxia/Ischemia
- Low Amplitude QRS Complex
- Wide QRS Complex
- Bundle Branch Block
- Differentials for ECG Abnormalities
Lesson 10 of 14
In Progress
Myocardial Hypoxia/Ischemia
While there are no specific ECG findings that are pathognomonic for hypoxemia, some of the following may be generally suggestive:
- Wide QRS complexes
- ST segment depression or elevation (≥0.2 mV)
- Tall T waves (more than 1/4 total QRS excursion)
- Notching of the R wave of the QRS complex (microscopic intramural myocardial infarction or MIMI)
- Low amplitude QRS complexes
- Conduction disturbances (aberrant conduction) leading to wide and bizarre QRS morphology
