12 results
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... - Differential Diagnosis ... • Central Dl (Low ... Mimics (↑ urine ... #Causes #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... - Differential Diagnosis ... diuresis (see Polyuria ... mannitol, glucosuria Low ... Hypernatremia #Nephrology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
Fractional excretion ... of magnesium = (urine ... #differential #diagnosis ... #causes #nephrology ... #magnesium #low
How do you work up an ischemic CVA?
A) Initial Evaluation
 • ABCs
 • IV access, monitor
How do you work ... suspicion) • +/- bubble ... #stroke #workup ... #diagnosis #checklist ... #neurology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
alkalosis • Normal/low ... in the proximal tubule ... the indicated causes ... #Algorithm #nephrology ... #differential #diagnosis
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
- Differential Diagnosis ... leukemia Measure Urine ... Fractional Excretion ... Fanconi syndrome, CA ... Workup #phosphate #nephrology
Causes of Hyperkalemia - Reduced Excretion - Differential Diagnosis Algorithm

Reduced flow through distal nephron - TTKG
Causes of Hyperkalemia ... - Reduced Excretion ... - Differential Diagnosis ... nephron - TTKG > 7, Urine ... IntercellularShift #Nephrology
Rhabdomyolysis - Differential Diagnosis Framework and Management Summary

Causes of Rhabdomyolysis:
 • Trauma:
	- Immobilization
	- Crush injury
	- Compartment
- Differential Diagnosis ... Management Summary Causes ... Heat injury, Heat stroke ... Weakness - Dark urine ... #treatment #nephrology
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
• ↓ Renal K+ Excretion ... lysis) ± Urine ... only if no clear cause ... acidosis) • Low ... #potassium #nephrology
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
may precede the neurologic ... Constipation, Seizures, Stroke ... the underlying cause ... • Treatment of ... #management #neurology