13 results
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Differential Diagnosis ... with secondary, hypocalcemia ... #differential # ... diagnosis #causes #nephrology ... #magnesium #low
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
Approach to Hypomagnesemia ... @NEPHKIDS1 #Hypomagnesemia ... #algorithm #differential ... diagnosis #causes #nephrology ... #magnesium #low
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
and hypomagnesemia ... Hypokalemia ... overdose) - Sodium ... #Medications #differential ... #diagnosis #nephrology
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Hypocalcemia Workup ... - Differential ... Magnesium, High ... Magnesium - Functional ... #Workup #Differential
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... Hypercalcemia - Hypokalemia ... #Differential # ... Diagnosis #Low # ... Magnesium #Table
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
thiazide-sensitive sodium ... thiazide-sensitive sodium ... alkalosis • Normal or low ... ratio 0.5%) Differential ... • Potassium • Magnesium
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
potassium(K) & magnesium ... consumption • Low ... diagnosis #Algorithm #differential ... #potassium #nephrology ... #low
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
Causes of Hypokalemia ... - Differential ... Gittelman's syndrome • Magnesium ... artery stenosis Low ... #Nephrology #Differential
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... aldosteronism #Hypomagnesemia ... #Causes #differential ... #diagnosis #nephrology ... #magnesium #low
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
: SIADH, Renal Sodium ... can be high or low ... Present (Uosm ≥100): Hypovolemia ... #Hyponatremia #differential ... #nephrology