8 results
A Lewis Lead (also called the S5 lead) is a modified ECG lead used to detect
atrial flutter ... waves when atrial ... depolarization, atrial ... #Cardiology #EKG ... #Flutter #ECGEducator
Counterclockwise and (Left) vs Clockwise (Right) Flutter
Typical atrial flutter is counterclockwise in direction and originates from
in the inferior leads ... in the inferior leads ... #Diagnosis #ECG ... #EKG #Cardiology ... #Classification
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Electrocardiogram (EKG ... from the foxglove leaf ... flutter (rate control ... biphasic T waves - Short ... #Cardiology #Digitalis
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... (e.g. ectopic atrial ... Flutter PR Interval ... @AmyChung #EKG ... Electrocardiogram #cardiology
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
injury • Terrible triad ... Complex, involve orthopedics ... Complex, pending orthopedic ... Dislocation #Posterior #Radiology ... #Sports #MSK
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
: WPW, ectopic atrial ... 500 DANGER - Short ... QT <300-360 ms: ... #EKG #diagnosis ... electrocardiogram #cardiology
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
as a result of arterial ... immobilized • Both lead ... follow-up with Orthopedics ... Wrist #Carpal #Radiology ... #Sports #MSK
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
specific questions to ask ... indicated • EKG ... Obtain EKG if: ... Intraabdominal - Orthopedic ... one post op Cardiology