18 results
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... • Reduced GFR, AKI ... Hypo-osmolar urine ... Uosm < 100 mmol/kg ... #Hyponatremia #Nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... • Reduced GFR, AKI ... Hypo-osmolar urine ... Uosm < 100 mmol/kg ... #Hyponatremia #Nephrology
Glomerular Diseases - Nephritic and Nephrotic Syndromes

Nephritic syndrome—due to GBM disruption. 
Hypertension. t BUN and creatinine.
RBC casts in urine ... may be in nephrotic ... May be 10 (eg direct ... #Proteinuria #Nephrology ... #Diagnosis
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
BEE Syndromes - ... Non-inflammatory Causes ... affecting the Brain ... neuropathy (LHON) plus MRI ... #Syndromes #neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
- Compatible syndrome ... + MRI lesions + ... RingEnhancing #Lesions #Brain ... #causes #radiology ... #neurology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
volume-based algorithm Urine ... Cirrhosis, Nephrotic syndrome ... solute intake (Beer ... #differential #diagnosis ... table #sodium #nephrology
How do you work up an ischemic CVA?
A) Initial Evaluation
 • ABCs
 • IV access, monitor
brain w/o contrast ... Evaluate underlying cause ... Cardioembolic: • ECG ... stroke #workup #diagnosis ... #checklist #neurology
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... colored compounds (e.g ... #Urine #Microscopy ... #nephrology #interpretation ... #diagnosis
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Amyotrophic Lateral ... - Causes progressive ... EMG: LMN Signs in ... MRI: Brain, cervical ... Further testing must be
Leigh Syndrome 
History: 19-month-old girl with hypotonia, developmental 
delay, failure to thrive, and bilateral optic disc
Leigh Syndrome ... elevation (can be ... #Clinical #MRI ... #Brain #Diagnosis ... #Radiology