32 results
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
Hypermagnesemia ... intake - Magnesium ... DrEricStrong #Hypermagnesemia ... #Table #Causes ... #Management
Potassium Electrolyte Repletion
If patient also has hypomagnesemia, replete magnesium before repleting potassium
Oral:
 • Pills (ask pharmacy
Potassium Electrolyte ... patient also has hypomagnesemia ... , replete magnesium ... before repleting potassium ... Electrolyte #Repletion #management
Checklist Approach to Hypokalemia

Consider risk factors for arrhythmia:
 - EKG changes (especially QT prolongation)
 - Digoxin
Concomitant severe hy pomagnesemia ... Evaluation - Check magnesium ... EKG) Consider magnesium ... arrhythrnia (aggressive magnesium ... #Hypokalemia #Management
Magnesium Electrolyte Repletion
Oral - Only do if patient does not tolerate IV
 • Magnesium oxide (can
Magnesium Electrolyte ... tolerate IV • Magnesium ... 800mg PO daily • Magnesium ... Electrolyte #Repletion #management ... #hypomagnesemia
Intern Pocket Cards - Electrolyte Repletion Guide
Electrolyte Repletion:
 - Potassium (ref range 3.5-4.5)
 - Magnesium (ref
Repletion: - Potassium ... range 3.5-4.5) - Magnesium ... Repletion #Guide #management ... inpatient #internship #potassium ... phosphate #phosphorus #magnesium
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... Primary intestinal hypomagnesemia ... DrEricStrong #Hypomagnesemia ... Diagnosis #Low #Magnesium ... #Table #Classification
Potassium-Binding Agents to Treat Hyperkalemia
Sodium zirconium cyclosilicate (Lokelma):
 • Mechanism: Preferentially captures K in exchange for
Potassium-Binding ... K; also binds magnesium ... Side Effects: Hypomagnesemia ... of aspiration #Potassium ... #pharmacology #table
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
- Polyuria - Hypomagnesemia ... Diagnosis #Low #Potassium ... #Table #Classification
Symptoms and Signs of Hypomagnesemia
Neuromuscular:
 - Tetany, Muscle weakness, Chvostek and Trousseau signs, Cerebellar (ataxia, nystagmus,
Symptoms and Signs of Hypomagnesemia ... Muscle weakness, Chvostek ... Hypocalcemia, Anemia #Hypomagnesemia ... #magnesium #Symptoms
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... osmotic diuresis, Potassium ... aldosteronism #Hypomagnesemia ... diagnosis #nephrology #magnesium