13 results
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
= (urine magnesium ... Hypomagnesemia #algorithm #differential ... #diagnosis #causes ... #nephrology #magnesium ... #low
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
(K) & magnesium( ... A urine K/Cr ratio ... diagnosis #Algorithm #differential ... #potassium #nephrology ... #low
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
Rhabdomyolysis - Differential Diagnosis Framework and Management Summary

Causes of Rhabdomyolysis:
 • Trauma:
	- Immobilization
	- Crush injury
	- Compartment
Rhabdomyolysis - Differential ... Management Summary Causes ... Weakness - Dark urine ... Monitor potassium ... #treatment #nephrology
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... osmotic diuresis, Potassium ... #differential # ... diagnosis #nephrology ... #magnesium #low
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
- Differential ... isolation) GI loss - Urine ... Gittelman's syndrome • Magnesium ... #Hypokalemia #Nephrology ... #Differential #
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
alkalosis • Normal/low ... the indicated causes ... of sodium and potassium ... #Algorithm #nephrology ... #differential #
Causes of Hypokalemia
I. Decreased intake
   A. Starvation
   B. Clay ingestion
II. Redistribution into
Causes of Hypokalemia ... infarction, head injury ... Magnesium deficiency ... #Hypokalemia #Differential ... #Potassium #Classification
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Lactic Acidosis - Differential ... excretion (e.g., urine ... liver or renal injury ... LV failure - Low ... #typea #typeb #classification
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
Na/Cl > 1.6, low ... correcting serum potassium ... continued in most cases ... hypokalemia #diagnosis #differential ... #algorithm #nephrology