13 results
Stimulated
SA node
AV node -
Un-stimulated
#PQ
(mV) 0
ECG (lead II)
QRS
#QRS
#SA node
#AV node
#Bundle of His
Bundle branches
#Purkinje fibers
#QRS
#ST
Un-stimulated #PQ ... (mV) 0 ECG (lead ... node #AV node #Bundle ... of His Bundle
Primary Amenorrhea Differential Diagnosis Framework

Workup:
 • β-HCG, TSH and PRL
 • Breast Tanner Staging
 • FSH,
Workup: • β-HCG ... Diagnosis #pediatrics #obgyn ... #gynecology #algorithm
Algorithm for the Evaluation of Regular, Wide-Complex Tachycardia
1. aVR: Is the initial deflection in aVR positive?
Algorithm for the ... Bundle-branch morphology ... Interpretation #ECG ... #EKG #Electrocardiogram
Hyperkalemia - Management Algorithm
 • IV calcium
 • IV insulin and glucose and/or salbutamolt
 • Consider
Hyperkalemia - Management Algorithm ... potassium and ECG ... fascicular blocks. bundle ... diagnosis #management #algorithm
Causes of Post-Partum Hemorrhage - Differential Diagnosis Algorithm
Blood Loss: >500mL post vaginal delivery OR >1000 mL
Differential Diagnosis Algorithm ... Uterine fatigue (e.g ... coagulopathy (e.g ... Differential #Diagnosis #Algorithm ... Causes #Obstetrics #OBGyn
Causes of Abnormal Genital Bleeding - Differential Diagnosis Algorithm
Non-Gynecologic:
 • Medical (e.g. coagulopathy, liver disease, renal
Differential Diagnosis Algorithm ... : • Medical (e.g ... Differential #Diagnosis #Algorithm ... #Causes #OBGyn
Causes of Early (<20 Weeks) and Late Bleeding in Pregnancy  - Differential Diagnosis Algorithm
Early Bleeding
Differential Diagnosis Algorithm ... Transvaginal U/S • ß-hCG ... doubled in 72h • ß-hCG ... Differential #Diagnosis #Algorithm ... Causes #Obstetrics #OBGyn
Causes of Growth Discrepancy: Large for Gestational Age - Differential Diagnosis Algorithm
Maternal Factors:
 • Multiparity
 •
Differential Diagnosis Algorithm ... co-morbidities (e.g ... Genetic disorder (e.g ... Differential #Diagnosis #Algorithm ... Causes #Obstetrics #OBGyn
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Differential Diagnosis Algorithm ... <35 years old, e.g ... • Functional (e.g ... Differential #Diagnosis #Algorithm ... #Causes #OBGyn
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Differential Diagnosis Algorithm ... Gonadal Dysgenesis (e.g ... • Functional (e.g ... Differential #Diagnosis #Algorithm ... #Causes #OBGyn