23 results
Causes of HyperKalemia - Differential Diagnosis
Increased extracellular K+:
 • Tissue injury
 • Hemolysis
 • Rhabdomyolysis
 •
Causes of HyperKalemia ... K+: • Tissue injury ... glycosides • High ... blockers - MCW Nephrology ... Differential #Diagnosis #Causes
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Transverse Myelitis, Trauma ... Phrenic nerve injury ... Neuromuscular #Weakness #Causes ... differential #diagnosis #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Fasciculus (MLF) Iniury ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential
Traumatic Red Eye - Differential Diagnosis Algorithm
Surface Injury:
 • Corneal Abrasion
 • Ultraviolet Keratitis
 • Chemical
alkali) Blunt Trauma ... Hyphema, history of trauma ... / high velocity ... Diagnosis #Algorithm #Causes ... #Ophthalmology
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Acute tubular injury ... - Up to 3 per high-power ... normal; >3 per high-power ... acute tubular injury ... key #diagnosis #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
phlebotomy High ... • Burns • Trauma ... /Crush injury ... differential #diagnosis #causes ... #nephrology
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Immune mediated injury ... disease Renal Causes ... and SMA - Can cause ... Malignancy • Trauma ... #urology #nephrology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
dissociation • Other causes ... of tonic pupil (trauma ... #PhysicalExam #neurology ... #ophthalmology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... Post-neurosurgery, Trauma ... diseases, Hypoxic injury ... Differential #Diagnosis #Causes ... #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
phlebotomy High ... • Burns • Trauma ... /Crush injury ... differential #diagnosis #causes ... #nephrology