65 results
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
•Electrolyte disorders ... hypomagnesemia, hypokalemia ... TorsadesDePointes #Diagnosis ... #Cardiology #ECG ... #EKG
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
- Differential Diagnosis ... (e.g. sarcoidosis ... - Medications (e.g ... renal diseases (e.g ... #Table #Causes
Causes of Hypercalcemia - Differential Diagnosis Algorithm
 • Primary Hyperparathyroidism 
 • Possible Familial Hypocalciuric Hypercalcemia
Causes of Hypercalcemia ... Algorithm • Primary ... Granulomatous Disorders ... (eg sarcoidosis ... #Algorithm #Causes
Causes of Excessive Daytime Sleepiness - Differential Diagnosis Algorithm
Insufficient Sleep
 • Poor Sleep Hygiene
 • Insomnia
Shift Work) Sleep ... (Eg. ... • Medications (Eg ... • Drug Abuse (Eg ... #Algorithm #Causes
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
Hyperkalemia shortens ... prolonged PR and QT ... #Diagnosis #Hyperkalemia ... #EKG #ECG #Changes ... #Progression #Table
Constipation - Differential Diagnosis Algorithm
Diet/Lifestyle
 • Fibre
 • Calories
 • Fluid
 • Exercise
 • Psychosocial
Medications
 •
Algorithm Diet ... Active Medications (e.g ... Cation Related (e.g ... Anticholinergic (e.g ... #Algorithm #Causes
Causes of Neutrophilia - Increased Neutrophils - Differential Diagnosis Algorithm
Infection
 • Bacterial
 • Abscess
 • Viral
Medications
Causes of Neutrophilia ... - Differential Diagnosis ... Algorithm Infection ... Solid Tumour (e.g ... #Algorithm #Causes
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Algorithm Infectious ... • Thrombus (e.g ... Myeloproliferative disorders ... (eg. polycythemia ... #Algorithm #Causes
Proposed Algorithm for Diagnosing Sarcoidosis
Highly suggestive Clinicoradiological Findings → Clinical diagnosis (without biopsy) e.g. Löfgren's syndrome
Suggestive
Proposed Algorithm ... without biopsy) e.g ... and/or cytology (e.g ... of alternative causes ... #diagnosis #Workup
Causes of Developmental Delay - Differential Diagnosis Algorithm
Isolated Domain Delay - Reduced Respiratory Drive:
 • Cognitive
Causes of Developmental ... Algorithm Isolated ... (e.g. ... • Mechanical (e.g ... #Algorithm #Causes