47 results
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
Hyperkalemia shortens ... repolarization; changes ... prolonged PR and QT ... #EKG #ECG #Changes ... #Progression #Table
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Infiltrative disorders (e.g ... - Medications (e.g ... renal diseases (e.g ... #Diagnosis #Table ... #Causes
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Hyporeflexia: • Hypercalcemia ... polyneuropathy (e.g ... #differential # ... diagnosis #table ... #neurology
Alice in Wonderland Syndrome
What? Metamorphophsia - Distortions of the visual perceptions with changes in size (micro
perceptions with changes ... (Many causes!) ... • Infection (e.g ... Brain lesions (e.g ... #differential
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
Causes of Fatigue ... Liver Failure • Hypercalcemia ... Neoplastic / Hematologic ... Chronic Obstructive Pulmonary ... • Drug Abuse (e.g
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Malignancy (e.g ... CNS pathology (e.g ... pathology (e.g. ... #Diagnosis #Table ... #Causes #Sodium
Classification of Diabetes Insipidus

Central or neurogenic diabetes insipidus:
 - Congenital - Structural malformations affecting the hypothalamus
metastases, Infection (e.g ... uropathy, Metabolic causes ... (e.g., hypokalemia ... disease, Drugs (e.g ... #Diagnosis #Differential
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
- Differential ... • Drugs • Pulmonary ... /CRF Hormonal changes ... Uosm < 100 mmol/kg ... #Hyponatremia #Nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
- Differential ... • Drugs • Pulmonary ... /CRF Hormonal changes ... Uosm < 100 mmol/kg ... #Hyponatremia #Nephrology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... function test, ANA (e.g ... neurologic/psychiatric changes ... or if a primary hematologic ... #Workup #hematology