11 results
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... : Differential diagnosis ... #AVR #leadAVR #ecg ... #ekg #differential ... #cardiology
Typical ECG changes in acute pericarditis includes: stage 1 - diffuse, positive, ST elevations with reciprocal
Elevation of PR ... be present in all ... indefinitely inverted #Diagnosis ... #EM #IM #Cardiology ... #EKG #Pericarditis
Pericarditis on EKG
Stage 1 - Widespread ST elevation (<5mm) and PR depression; In aVR: ST depression
Widespread ST elevation ... depression; In aVR ... depression and PR elevation ... segments, usually best ... #cardiology #diagnosis
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
- Differential ... , not in aVL • ... , not in aVL, when ... lateral leads (I, aVL ... diagnosis #cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
in aVR • Posterior ... of the leads l, aVL ... #EKG #diagnosis ... #differential # ... cardiology #electrocardiogram
Vasospastic (Prinzmetal) Angina
Definition / Epidemiology:
 • Rest angina attributed to coronary artery vasospasm.
 • Patients often
younger than other ACS ... Variable troponin elevation ... Diagnosis: ... changes on tele/ECG ... perform provocative tests
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
leads with STE in avR ... inversion - STE avR ... wave inversion in avL ... #EKG #diagnosis ... Interpretation #differential
Myocarditis 

5 Principles of
Myocarditis:
1. Build clinical suspicion
2. Decide on EMBx
3. Manage acute cardiac injury
4. Manage chronic
Pericarditis, Tamponade EKG ... Findings: - AV ... Myocardial injury (ST elevation ... agent, steroids, AC ... #Myocarditis #diagnosis
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
assoc with 1K, AV ... Syncope #Syndromes #ECG ... #EKG #Checklist ... #diagnosis #cardiology ... electrocardiogram #differential
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Lactic Acidosis - Differential ... Diagnosis The ... tests before beginning ... lactate and can act ... #Differential #