32 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
GI Uptake - Poor ... Medications - Loop ... Low #Magnesium #Table ... #Classification ... #Causes #Workup
Flowchart to diuretic use in acute heart failure.

(A) Congestion with volume overload. 

(B) Treatment algorithm after
(B) Treatment algorithm ... Total loop diuretic ... maximal dose for IV loop ... following a single loop ... HeartFailure #Cardiology #Management
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Causes of Hypomagnesemia ... Differential Diagnosis Algorithm ... Urine Mg > 10g • Loop ... Diuretics • Hypercalcemia-PTH ... Magnesium #Low #Causes
Pharmacology of diuretics

Acetazolamide, Loop diuretics, Thiazide‐like diuretics, MRA, Amiloride

Site of Action, Maximum Dose, Half-Life, Onset, Bioavailability,
Acetazolamide, Loop ... diuretics, MRA, ... Pharmacology #Comparison #Table ... HalfLife #Dosing #Loop ... CHF #Cardiology #Management
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... Alcoholism (worsened by hypomagnesemia ... anhydrase inhibitors, loop ... syndrome (mimics loop ... #Hypokalemia #Causes
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
Causes of Hypomagnesemia ... - Malnutntion, poor ... Saline or osmotic diuresis ... disease Drugs: - Loop ... #Causes #diagnosis
Hypernatremia Classification and Features According to Volume Status
 - Hypervolemic hypernatremia - Cushing's syndrome, Primary hyperaldosteronism,
Hypernatremia Classification ... , Loop diuretics ... Postobstructive diuresis ... Hypernatremia #Classification ... Diagnosis #Comparison #Table
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
hypokalemia and hypomagnesemia ... foscarnet - Diuretics ... Furosemide and other loop ... diuretics ... diagnosis #nephrology #Causes
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Differential Diagnosis Algorithm ... Low intake • poor ... Medication • Hypomagnesemia ... • Osmotic diuresis ... #Causes #Classification
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Differential Diagnosis Poor ... Urinary Losses - Diuretics ... Low #Potassium #Table ... #Classification ... #Causes