10 results
Causes of Primary Headaches - Differential Diagnosis Algorithm
Unilateral
 • Migraine (Throbbing/Pulsating)
Bilateral
 • Tension/Stress Headache (Tightening, Band-Like,
Headaches - Differential ... Diagnosis Algorithm ... HeadachePrimary ... #Primary #Headaches ... #Neurology #Differential
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Diagnosis Algorithm ... 100 mOsm/kg) • Primary ... #Differential # ... #causes #nephrology
Causes of Primary and Secondary (without Red Flags) Headaches - Differential Diagnosis Algorithm

#Primary #Secondary #Headaches #Neurology
Causes of Primary ... - Differential ... Diagnosis Algorithm ... #Headaches #Neurology ... #Differential #
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Polyuria - Differential ... Diagnosis Algorithm ... Diabetes Insipidus • Primary ... #Differential # ... #nephrology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
- Differential ... of Water: • Primary ... Hereditary, Lithium, Hypercalcemia ... #Differential # ... Diagnosis #Causes #nephrology
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
- Differential ... Diagnosis Algorithm ... arteritis • Acute angle ... #Differential # ... #neurology #PHANTOMS
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
- Differential ... Diagnosis Algorithm ... Deprivation Test • Primary ... #Nephrology #Differential ... #Diagnosis #Algorithm
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
- Differential ... Primary headaches ... : - Acute angle-closure ... #differential # ... ophthalmology #Neurology
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Hyperkalemia: Diagnostic ... algorithm Decreased ... Renin High: • Primary ... #nephrology #potassium ... #differential
Causes of Chronic Kidney Disease - Differential Diagnosis Algorithm
Decreased kidney function (eGFR < 60 ml/min/1.73 m2)
Kidney Disease - Differential ... Diagnosis Algorithm ... Hyperoxaluria • Hypercalcemia ... KidneyDisease #Nephrology ... #Differential #