15 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
abnormalities - Hypercalcemia ... - Hypokalemia ... - Osmotic diuresis ... Diagnosis #Low # ... Magnesium #Table
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
Alkalosis • Hypokalemia ... • Hypomagnesemia ... • Osmotic Diuresis ... Acetazolamide and Thiazide Diuretics ... #endocrinology
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Differential Diagnosis ... with secondary, hypocalcemia ... pentamidine), Hypercalcemia ... , Diuretic phase ... #low
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... plasma insulin (treatment ... , Acute leukemia ... or induced) #Hypokalemia ... #Causes #differential
Hypocalcemia - Differential Diagnosis Algorithm - Low and High PTH
LOW PTH - Hypoparathyroid
 - Congenital (Pediatric)
Hypocalcemia - Differential ... - Low and High ... • Chronic Renal ... Tumor lysis syndrome ... laxatives) #Hypocalcemia
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Malabsorption RENAL ... > 10g • Loop Diuretics ... • Hypercalcemia-PTH ... • Thiazide Diuretics ... #Magnesium #Low
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
Causes of Hypokalemia ... contracted • Loop diuretics ... • Thiazide diuretics ... aldosterone • Renal ... #Hypokalemia
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
after starvation, Acute ... Saline or osmotic diuresis ... • Drugs: Loop diuretics ... #Causes #differential ... #magnesium #low
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
with thiazide diuretic ... Family history of hypokalemia ... • Unexplained hypokalemia ... pressure Labs: • Hypokalemia ... pathophysiology #Hypokalemia
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation ... Before evaluating hypokalemia ... in evaluating hypokalemia ... Alkalosis: Emesis, Diuretics ... @krithicism #Hypokalemia