11 results
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Digoxin effect on Electrocardiogram ... (EKG) Digoxin ... intracellular Ca ... biphasic T waves - Short ... #EKG #Cardiology
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
deWinter T waves - starts ... #EKG #diagnosis ... #electrocardiogram ... #cardiology #STEMI ... Interpretation #differential
Wraparound LAD STEMI on EKG
47 year old with chest pain. Ectopic atrial rhythm with ST elevations.
Wraparound LAD STEMI ... on EKG 47 year ... RCA did not supply ... Wraparound #LAD #STEMI ... #cardiology #electrocardiogram
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
, long P • ↑ Ca ... #EKG #Checklist ... #diagnosis #cardiology ... #electrocardiogram ... #differential
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
STEMI Equivalents ... STEMI - Elevation ... #EKG #diagnosis ... #differential # ... cardiology #electrocardiogram
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
ST elevation: Differential ... #electrocardiogram ... #diagnosis #ekg ... #differential # ... cardiology
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
500 DANGER - Short ... <300-360 ms: ↑ca ... #EKG #diagnosis ... #electrocardiogram ... #cardiology #interpretation
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Segment Elevation - Differential ... Diagnosis Framework STEMI ... STElevation #ST #STEMI ... #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Gastric & Ovarian CA ... nodes • Roth’s spots ... Marantic (NTBE) Differential ... ↑ ESR, CRP • EKG ... diagnosis #management #cardiology
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
- Overview and Differential ... nodes • Roth’s spots ... ↑ ESR, CRP • EKG ... #Endocarditis #Differential ... #Diagnosis #cardiology