15 results
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Acute spinal cord injury ... Hyperreflexia: • Delayed ... in spinal cord injury ... #differential # ... diagnosis #table #neurology
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
to Acute Kidney Injury ... rhabdo/TLS) Causes ... often prostate related ... AcuteKidneyInjury #AKI #Nephrology ... #Differential
Common causes of Acute Kidney Injury AKI - Differential Diagnosis
HEMODYNAMIC
 • Cardiac failure: Impaired forward flow,
Common causes of ... Acute Kidney Injury ... AKI - Differential ... Impaired forward flow ... #Diagnosis #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... - Differential ... mannitol, glucosuria Low ... Hypernatremia #Nephrology ... #Differential #
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Regular and mildly dilated ... unilateral; • Slow ... Young females Differential ... dissociation • Other causes ... #PhysicalExam #neurology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... - Differential ... • Central Dl (Low ... diseases, Hypoxic injury ... #nephrology
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Hypochloremia - Differential ... Decreased Intake: • Low ... ⁻ is inversely related ... Hypochloremia #Differential ... Pathophysiology #Nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... Hyperkalemia: • CKD ... • Trauma/Crush injury ... #diagnosis #causes ... potassium #high #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... Hyperkalemia: • CKD ... • Trauma/Crush injury ... #diagnosis #causes ... potassium #high #nephrology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
symptoms: • Severe low ... - Emergency Causes ... constipation Differential ... #diagnosis #causes ... #neurology