22 results
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
Propoxyphene Other antidepressants ... Venlafaxine Tricyclic Antidepressants ... QRS #widening #ECG ... #EKG #Pharmacology ... Toxicology #Diagnosis #Differential
Primary Amenorrhea Differential Diagnosis Framework

Workup:
 • β-HCG, TSH and PRL
 • Breast Tanner Staging
 • FSH,
Primary Amenorrhea Differential ... Workup: • β-HCG ... Primary #Amenorrhea #Differential ... Diagnosis #pediatrics #obgyn
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hyponatremia - Differential ... - Malignancy (e.g ... CNS pathology (e.g ... cyclosporine, SSRIs ... #Hyponatremia #Differential
Constipation - Differential Diagnosis Algorithm
Diet/Lifestyle
 • Fibre
 • Calories
 • Fluid
 • Exercise
 • Psychosocial
Medications
 •
Constipation - Differential ... Cation Related (e.g ... Anticholinergic (e.g ... Antispasmodics, Antidepressants ... #Constipation #Differential
Medications causing Acute Kidney Injury (AKI)
Prerenal:
 • Dehydration: Diuretics
 • Altered intrarenal autoregulation: ACEIs / ARBs,
calcineurin inhibitors (e.g ... Sympathomimetics (e.g ... anticholinergic effects (e.g ... antihistamines, TCAs, SSRIs ... #pharmacology #differential
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... ST elevation: Differential ... Tricyclic antidepressant ... #AVR #leadAVR #ecg ... #differential #
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
Shock - Differential ... Medication side effect (e.g ... . αblockers, antidepressants ... Medication side effect (e.g ... #Syncope #Differential
Causes of Post-Partum Hemorrhage - Differential Diagnosis Algorithm
Blood Loss: >500mL post vaginal delivery OR >1000 mL
Post-Partum Hemorrhage - Differential ... Uterine fatigue (e.g ... coagulopathy (e.g ... Hemorrhage #PPH #Differential ... Causes #Obstetrics #OBGyn
Causes of Abnormal Genital Bleeding - Differential Diagnosis Algorithm
Non-Gynecologic:
 • Medical (e.g. coagulopathy, liver disease, renal
Genital Bleeding - Differential ... : • Medical (e.g ... Pelvic #Bleeding #Differential ... Algorithm #Causes #OBGyn
Causes of Early (<20 Weeks) and Late Bleeding in Pregnancy  - Differential Diagnosis Algorithm
Early Bleeding
in Pregnancy - Differential ... Transvaginal U/S • ß-hCG ... doubled in 72h • ß-hCG ... Bleeding #Pregnancy #Differential ... Causes #Obstetrics #OBGyn