17 results
Causes of Primary and Secondary Amenorrhea - Differential Diagnosis Algorithm
Primary Amenorrhea - No onset of menarche
Causes of Primary ... - Differential Diagnosis ... • Ovarian - Normal ... Negative progesterone challenge ... #Algorithm #Causes
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary ... Amenorrhea - Differential ... Diagnosis Algorithm ... , normal prolactin ... #Algorithm #Causes
TCA Overdose on EKG
 • Sinus tachycardia
 • QRS prolongation
 • QT prolongation
 • Rightward deviation
prolongation • QT ... antidepressants #EKG #ECG #electrocardiogram ... #cardiology #diagnosis ... #clinical #criteria
Normal QT Interval Measurement
General rule: QT interval should be < 1/2 RR interval
   -
Normal QT Interval ... Only works at normal ... #Measurement #cardiology ... #diagnosis #ecg ... #ekg #electrocardiogram
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Digoxin effect on Electrocardiogram ... - Decreases AV nodal ... conduction Uses ... waves - Short QT ... #EKG #Cardiology
Normal Sinus Rhythm - ECG Diagnosis
Normal sinus rhythm (NSR) is an impulse that originates in the
- ECG Diagnosis ... SinusRhythm #nsr #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram ... #criteria
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
dextrocardia, normal ... : ↑ca - Long QT ... Approach #ECG #EKG #diagnosis ... #electrocardiogram ... #cardiology #interpretation
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
T Waves: • Normal ... V1 (Invert III normal ... Rule of thumb: a normal ... Interpretation #ECG #Electrocardiogram ... #cardiology #diagnosis
Deep T Wave Inversions - Differential
Normal variants 
  A. Juvenile T wave pattern
Differential Normal ... #Differential #Diagnosis ... #Causes #Cardiology ... #ECG #EKG #Electrocardiogram
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
- Differential Diagnosis ... Don't rely on criteria ... • Beware AV nodal ... #Differential #Diagnosis ... #cardiology